Seiko Astron 3X22 User Manual

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READ FIRST

Complete User Guide

3X22 GPS Solar Watch

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CONTENTS

ASTRON 3X22 GPS SOLAR

Thank you very much for choosing a SEIKO watch.

For proper and safe use of your SEIKO watch,

please read carefully the instructions in this

booklet before using it.

Keep this manual handy for easy reference.

* Length

was purchased. If you cannot have your watch repaired by the retailer from whom the watch was purchased because you received the watch as a gift, or you moved to a distant place, please contact SEIKO CUSTOMER SERVICE CENTER. The service may also be available on a chargeable basis at other retailers, however, some retailers may not undertake the service.

* If your watch has a protective film for preventing scratches, make sure to peel it off before

using the watch. If the watch is used with the film on it, dirt, sweat, dust, or moisture may be attached to the film and may cause rust.

adjustment service for metallic bands is available at the retailer from whom the watch

READ FIRST

ASTRON 3X22 GPS SOLAR

Handling cautions

b WARNING

Please

note that there is a risk of serious consequences such as severe injury if the following safety

regulations are not strictly observed.

Immediately stop wearing the watch in following cases:

○ If the watch body or band becomes edged by corrosion etc.

○ If the pins protrude from the band.

* Immediately

CENTER.

consult the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE

Keep the watch and accessories out of the reach of babies and children.

Care should be taken to prevent a baby or a child accidentally swallowing the accessories. If a baby or child swallows the battery or accessories, immediately consult a doctor, as it will be harmful to the health of the baby or child.

Do not remove the secondary battery from the watch.

About the secondary battery → Power Source　P. 36 Replacement of the secondary battery requires professional knowledge and skill. Please ask the retailer from whom the watch was purchased for replacement of the secondary battery. Installation of an ordinary silver oxide battery can generate heat that can cause bursting and ignition.

b CAUTION

Please

note that there is a risk of minor injury or material damage if the following safety regulations

are not strictly observed.

Avoid the following places for wearing or keeping the watch:

○ Places where volatile agents (cosmetics such as polish remover, bug repellent, thinners etc.) are

vaporizing

○ Places where the temperature drops below

5°C or rises above 35°C for a long time

○ Places affected by strong magnetism or static

electricity

○ Places affected by strong vibrations

○ Places of high humidity

○ Dusty places

If you observe any allergic symptoms or skin irritation

Stop wearing the watch immediately and consult a specialist such as a dermatologist or an allergist.

Other cautions

○ For adjusting the length of the metallic band, specialized knowledge and expertise are necessary.

Therefore, adjust the metallic band, injury may occur to your hand or fingers, or parts of the band may be lost.

○ Do not disassemble or tamper with the watch.

○ Keep the watch out of the reach of babies and children. Extra care should be taken to avoid risks of

any injury or allergic rash or itching that may be caused when they touch the watch.

○ When disposing of used batteries, follow the instructions of your local authorities.

○ If your watch is of the fob or pendant type, the strap or chain attached to the watch may damage your

clothes, or injure the hand, neck, or other parts of your body.

○ Please keep in mind that if a watch is taken off and placed down as it is, the case back, the band and

the clasp will rub against each other possibly causing scratches on the case back. We recommend placing a soft cloth between the case back, the band and the clasp after taking off your watch.

in such a case, contact the retailer from whom the watch was purchased. If you attempt to

READ FIRST

ASTRON 3X22 GPS SOLAR

b WARNING

Do not use the watch for scuba diving or saturation diving.

The various tightened inspections under simulated harsh environment, which are usually

required for watches designed for scuba diving or saturation diving, have not been conducted on the water resistant watch with the BAR (barometric pressure) display. For diving, use watches specifically designed for diving.

b CAUTION

Do not pour running water directly from faucet.

The water pressure of tap water from a faucet is high enough to degrade the water resistant performance of a water resistant watch for everyday life.

b CAUTION

Do not turn or pull out the crown when the watch is wet.

Water may get inside of the watch.

If the inner surface of the glass is clouded with condensation or water droplets appear inside of the watch for a long time, the water resistant performance of the watch is deteriorated. Immediately consult the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE CENTER.

Do not leave moisture, sweat and dirt on the watch for a long time.

Be aware of a risk that a water resistant watch may lessen its water resistant performance because of deterioration of the adhesive on the glass or gasket.

Do not wear the watch while taking a bath or a sauna.

Steam, soap or some components of a hot spring may accelerate the deterioration of water resistant performance of the watch.

READ FIRST

This is a GPS solar watch.

This watch has the following features.

ASTRON 3X22 GPS SOLAR

Features

GPS signal reception

The time on the watch can be adjusted to the current time with just one button operation*,

anywhere in the world.

* DST (daylight saving time or “summer time”) is set manually

This watch quickly adjusts the time by receiving GPS signals from GPS satellites.

→ Place where GPS signals can be easily received/Place

where GPS signals cannot be received P. 16

This watch responds to all the time zones around the world.

→ Time zone P. 6

When the region or time zone where the watch is used is changed, please carry out operation of “time zone adjustment.”

→ How to adjust the time zone P. 20

Solar charging Function

This watch operates by solar charging.

Expose the dial to light to charge the watch.

The watch will operate for about 6 months on a full charge.

When the energy stored in the watch runs out completely, it takes time to fully charge the watch, so please keep in mind to charge the watch regularly.

→ How to charge the watch P.

→ Standard Charging Time P. 14

Automatic time adjustment function

This watch automatically adjusts the time in accordance with action patterns during use.

When the watch has sensed sufficient brightness under an open sky, it automatically receives GPS signals from GPS satellites. This function enables the watch to automatically adjust the time precisely even while you are using the watch.

→ Automatic time adjustment P. 24

* This watch is unable to receive GPS signals when the

energy stored in the watch is low.

→ Check the charging status P. 13

* Unlike navigation equipment, this GPS solar watch is not designed to constantly receive GPS signals from GPS satellites without any operation.

This watch receives GPS signals only in the time zone adjustment mode, automatic or manual time adjustment mode.

READ FIRST

ASTRON 3X22 GPS SOLAR

Mechanism by which the GPS solar watch sets time and date

GPS satellite

This is a satellite operated by the United States Department of Defense altitude of 20,000 km.

Initially, this was a military satellite, but at present, information is partially disclosed to the public and used in various equipment including car navigation systems and cellular phones.

The GPS satellite is mounted with a high-accuracy atomic clock with an accuracy deviation of 1 second per 100,000 years.

(official name is NAVSTAR), and orbits the earth at an

Mechanism by which this watch sets the time and date

This watch receives GPS signals from GPS satellites to set the time and date based on the following information.

• Precise time and date based on the atomic clock

• Time zone information for your current location

(The current location is generally measured using 4 or more GPS satellites, to identify where among the world’s time zones the watch is located.)

To receive information about a time zone where you are, it is necessary

to adjust the time zone. → How to adjust the time zone　P. 20

* Unlike navigation equipment, this GPS solar watch is not designed to

constantly receive GPS signals from GPS satellites without any operation. This watch receives GPS signals only in the time zone adjustment mode, automatic or manual time adjustment mode.

READ FIRST

ASTRON 3X22 GPS SOLAR

Time zone

Based on Coordinated Universal Time (UTC), the standard time commonly used is adopted by countries and regions around the world.

Standard time is determined by nations and regions, with January 2019).

DST (Daylight Saving Time)

Depending on the area, DST (Daylight Saving Time) is individually set.

Daylight Saving Time means summer time, which is a system to lengthen daylight time by advancing 1 hour when daylight time is long in summer.

Daylight saving time has been adopted in about 80 countries, mainly in Europe and North America. The adoption and duration of daylight saving time vary depending on the country.

DST (daylight saving time or “summer time”) in each region may be changed by countries and regions.

Coordinated Universal Time (UTC)

“time zone” used to refer to the whole of a region that uses the same standard time. At present, the globe is divided into 38 time zones (as of

UTC is the universal standard time coordinated through an international agreement. This is used as the official time for recording time around the world. The time obtained by adding a leap second to the “International Atomic Time (TAI)” determined based on the atomic clock around the world and coordinated in order to compensate for deviations from universal time (UT) which is astronomically determined is the UTC.

READ FIRST

ASTRON 3X22 GPS SOLAR

The following functions are included

When the region or time zone where the watch is used is changed

Adjust the time zone.

The correct time for the current region is shown.

→

Time zone adjustment P. 19

→ Time zone P. 6

→ List of time differences around the world (for reference) P. 12

Los Angeles 7:00 PM on 6th

London 3:00 AM on 7th

To set only the time

The correct time for the set time difference can be displayed by performing “manual time adjustment”.

→

How to manually adjust the time P. 22

READ FIRST

Caliber/case

number

The number to

identify the watch

type

ASTRON 3X22 GPS SOLAR

How to check when the time zone information was configured for your watch

By referring to caliber-case number shown on the case back, you will be able to determine when

The case back shows the caliber-case number of

your watch.

* Display may vary depending on the model.

https://www.seikowatches.com/global-en/customerservice/knowledge/

In a region where the time zone has changed after time zone information was set on your watch, the

correct time will not be displayed even if time zone adjustment is performed through GPS radio

reception. Please perform the following operations to display the proper time.

<To set the time on the product in a region in which the time zone has

1. Select the current time in the region, using the manual time difference setting (selection). If DST (daylight saving time or “summer time”) is in effect, select a time that takes that into account.

Please see

2. Next, adjust the time by manual time adjustment.

For details, please refer to "Manual time adjustment"　P. 21.

3. When using the watch within the same time zone, the correct time will be displayed after automatic (GPS) or manual time adjustments.

"About manual time difference setting (selection)"　P. 23 for details.

the time zone data was configured.

For more details, refer to the URL below.

gpstimezonedatainfo

changed>

4. When moving from a region where the official time zone has changed to a different time zone, then back to the region where the official time zone has changed, carry out the same operations from 1. - 3. as indicated above to display the correct time in the region where the official time zone has changed.

CONTENTS

ASTRON 3X22 GPS SOLAR

CONTENTS

1.　READ FIRST ..................................................................................................................

Handling cautions ........................................................................................................... 2

Features ......................................................................................................................... 4

Mechanism by which the GPS solar watch sets time and date ....................................... 5

Time zone ....................................................................................................................... 6

The following functions are included .............................................................................. 7

How to check when the time zone information was configured for your watch ............... 8

2.　CONTENTS .................................................................................................................... 9

3.　BEFORE USE .............................................................................................................. 10

Names of the parts ....................................................................................................... 10

About display of reception results and in-flight mode (

List of time differences around the world (for reference) ...............................................

Check the charging status ............................................................................................ 13

About charging ............................................................................................................. 14

) ........................................... 11

4.　BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS

SIGNALS, ETC.) ................................................................................................................. 15

Basic operation flow ..................................................................................................... 15

GPS signal reception .................................................................................................... 16

To adjust the time zone and time by GPS signal reception (Time Zone Adjustment) .... 19

To adjust only the time by GPS signal reception (manual time adjustment) ................. 21

Setting the destination time zone while in flight, etc. (manual time difference setting),

and setting/resetting DST (daylight saving time or “summer time”) .............................. 23

Automatic time adjustment ........................................................................................... 24

When boarding (in-flight mode (

Leap second (Automatic leap second reception function) ............................................

)) ........................................................................... 25

6.　TO PRESERVE THE QUALITY OF YOUR WATCH ........................................

Daily care ..................................................................................................................... 29

Performance and caliber / case number ....................................................................... 29

Water resistant performance ........................................................................................ 29

Magnetic resistance ..................................................................................................... 30

Band ............................................................................................................................. 31

How to use an easy adjust type clasp ........................................................................... 32

How to use an adjustable three-fold clasp .................................................................... 33

How to use an adjustable three-fold clasp (Pointed tip diving type) .............................. 34

Lumibrite ...................................................................................................................... 35

Power Source ............................................................................................................... 36

After sales service ........................................................................................................ 37

7.　TROUBLESHOOTING .............................................................................................. 38

When the watch is unable to receive GPS signals ........................................................ 38

Adjust the time under a condition in which the watch is unable to receive GPS signals

(Manual time setting) .................................................................................................... 38

When the date or the position of the hour, minute, or seconds hand is incorrect .......... 40

Troubleshooting ........................................................................................................... 43

8.　FUNCTION LIST/SPECIFICATIONS ................................................................... 48

Index ............................................................................................................................ 48

SPECIFICATIONS ........................................................................................................ 49

5.　IN CASE OF AN UNUSUAL MOVEMENT OF THE SECONDS HAND .... 28

Seconds hand movement and watch state (energy depletion forewarning function) .... 28

BEFORE USE

Names of the parts

Hour hand

Seconds hand

Minute hand

Button A

Crown

ASTRON 3X22 GPS SOLAR

* The orientation and design of the display may vary depending on the model.

Date

Button B

BEFORE USE

ASTRON 3X22 GPS SOLAR

About display of reception results and in-flight mode (

Display of reception result

: Reception successful (8-second position)

Y N : Reception failed (52-second position)

→ Check the reception result P. 18

Display of in-flight mode (

Hand position

Display

→ In-flight mode P. 25

Display of charging status

)

In-flight mode (

) status

* The orientation and design of the display may vary depending on the model.

Hand position full middle low

Display

→ Check the charging status P. 13

→

How to charge the watch P. 14

BEFORE USE

List of time differences around the world (for reference)

This is a list of time differences around the world.

When performing manual time difference setting (selection), refer to the crown rotation direction.

DST (Daylight Saving Time) has been adopted in countries marked with a H.

In the Lord Howe Island time zone in Australia with a I mark, the time is advanced by 30 minutes while DST (Daylight Saving Time) is in effect.

ASTRON 3X22 GPS SOLAR

Representative city names…

All global time zones

Time difference from UTC:

+14 hours ~ –12 hours

→ Time zone adjustment　P. 19

Operation of the crown when manually setting the time difference

to perform manual time difference setting (selection)　

→ How

P. 23

Turning the crown to the right moves the time forward.

Turning the crown to the left moves the time backward.

City name UTC ± hours

HLondon

HParis/ HBerlin

Cairo +2

Jeddah +3

HTehran

Dubai +4

Kabul +4.5

Karachi +5

Delhi +5.5

Kathmandu +5.75

Dhaka +6

Yangon +6.5

Bangkok +7

Beijing +8

Eucla +8.75

Tokyo +9

HAdelaide

HSydney

ILord Howe Island

+3.5

+9.5

+10

+10.5

City name UTC ± hours

Nouméa +11

HWellington

HChatham Islands

Nuku’alofa +13

Kiritimati +14

Baker Island -12

Midway islands -11

Honolulu -10

Marquesas Islands -9.5

HAnchorage

HLos Angeles

HDenver

HChicago

HNew York

Santo Domingo -4

HSt. John’s

HRio de Janeiro

Fernando de Noronha -2

HAzores

+12

+12.75

-3.5

-9

-8

-7

-6

-5

-3

-1

* Information about time differences among regions (time zones) and the

implementation of DST (daylight saving time or “summer time”) is as of January 2019.

BEFORE USE

Check the charging status

Push and

release

Button B

When Button B is pushed and released, the seconds hand moves, allowing you to check the energy level.

We recommend that you check the “energy level” on a regular basis to ensure that the watch does not do into a low energy state.

* GPS signal reception requires a lot of energy. Keep in mind to regularly charge the watch by expose to light.→ About charging　P. 14

ASTRON 3X22 GPS SOLAR

Reception is allowed

Seconds hand display Charging status Solution

Reception is allowed.

full

middle

Use the watch as it is.

→ P.

Reception is allowed, but keep in mind to charge the watch. → P.

Reception is not allowed

Seconds hand display Charging status Solution

The movement of the

seconds hand

2-second

interval

movement

5-second

interval

movement

The watch is unable

low

The energy level is in a very “low” state.

If the energy depletion forewarning function is activated, the “charging status” cannot be displayed.

to receive GPS signals, but has energy to operate.

Charging status Solution

To enable reception, charge the watch until the energy level is at least “middle”.

→

About charging P. 14

To keep the watch operating and also enable reception, continue charging the watch until the energy level is at least “middle”.

About charging P. 14

→

→ 2-second interval movement/5-second interval

movement are brought about P. 28

BEFORE USE

ASTRON 3X22 GPS SOLAR

About charging

How to charge the watch

Expose the dial to light to charge the watch.

To ensure optimal performance of the watch, make sure that the watch is kept sufficiently charged at all times.

* When charging the watch, make sure that the watch is not heated to a high temperature. (The operational

temperature range is between -10°C to +60°C (14 ºF and 140 ºF).)

When first using the watch or starting to use the watch after it has stopped because of the energy depletion,

sufficiently charge the watch referring to the table on the page at the right.

Under the following situations, the energy of the watch is likely to be depleted, resulting in stoppage of the watch:

• The watch is concealed under a sleeve.

• The watch is used or stored under

conditions where it cannot be exposed to light for a long time.

Standard Charging Time

Charge the watch using the times below as a guide.

GPS signal reception consumes considerable energy. Expose the watch to light frequently, and charge the watch so that the energy level is "middle" or "full". (If the energy level is “low”, reception will not begin even if GPS signal reception is operated.)

→

Check the charging status P. 13

In the state

where the

hand moves

(the watch is

charged)

To move for

one day

Illumination

lx (LUX)

700

3,000

10,000

100,000 Sunlight

Light source Condition (Example)

Fluorescent

Sunlight

Fluorescent

light

From the state where the watch is

stopped (not charged)

To fully

charged

General offices - - 3.5 hours

30 W 20 cm 250 hours 9.5 hours 1 hour

Cloudy day

30 W 5cm

Sunny day (Under the

direct sunlight on a

summer day)

75 hours 3 hours 15 minutes

30 hours 1.5 hours 10 minutes

To one-second

interval movement

is secured

The figures of “Time required for charging the watch to start moving at one-second intervals” are estimations of time required to charge the stopped watch by exposing it to light until it moves at steady one-second intervals. Even if the watch is partially charged for a shorter period, the watch

resume one-second- interval movement. However, it may shortly return to two-second-interval

will movement. Use the charging time in this column as a rough guide for sufficient charging time.

* The required charging time slightly varies depending on the model.

BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)

Basic operation flow

ASTRON 3X22 GPS SOLAR

• When the region or

time difference (time zone) where the watch is used has changed

• To set only the

time

1. Check the place where GPS signals can be easily received

→ Place where GPS signals can be easily received/Place where GPS signals cannot be received　P.

Place where GPS signals can be easily received

Outdoors under an open sky with good visibility

Place where GPS signals cannot be received

2. Set the time zone and set the time and date

< Setting by GPS signal reception >

• Receive GPS signals, set

the time zone and set the time and date

• If DST (daylight saving time

“summer time”) is in effect, set the time difference manually

Set only the time

< Manual setting >

→ How to adjust the time zone　P.

→ How to perform manual time difference setting (selection)　P. 23

→ How to manually adjust the time　

P. 22

Incorrect by increments of hours

→ How to perform manual time difference setting (selection)　P. 23

Example: Within a subway station

Confirm time and date display

Time is nearly correct

→ How to manually set the time　P. 39

BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)

GPS signal reception

Place where GPS signals can be easily received/Place where GPS signals cannot be received

ASTRON 3X22 GPS SOLAR

Easy to receive

• Outdoors under an open sky with good visibility

Difficult to receive

• The smaller the sky, the more difficult it is to receive

GPS signals. In addition, it will also be difficult to receive GPS signals, if there is something that obstructs the GPS signals during reception (in particular, during time zone adjustment).

Examples:

• Between tall buildings

• Near wooded area

• Station/Airport

• Indoors with windows

signals cannot be received depending on window glass

* GPS

type. Refer to the “

Cannot receive.”

Cannot receive

• The

• There is something hindering the reception.

Examples:

• Indoors without windows

• Underground

• During passage of a tunnel

• Through special glass with thermal emission shield

• Close to equipment generating noise or performing

sky cannot be seen or only part of the sky can be

seen.

effect, etc.

wireless communications

BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)

ASTRON 3X22 GPS SOLAR

List of GPS signal reception methods (characteristics of all three types)

Reception

method

Features

Number of

acquired satellites

necessary for

reception

Time taken for

reception

What kind of

situation

Time adjustment Time zone adjustment

Time adjustment

Display the correct current time for the set (selected) time difference

One unit (to obtain only time information)

3 seconds to 1 minute 30 seconds to 2 minutes

To set the watch to the correct time while it is used in the same time zone (time difference)

Time zone identification and time adjustment

Identify the time zone of your current location, and display the correct current time

Basically more than 4 units (to obtain time information and time zone information)

When the watch is used in a different time zone

Leap second data

reception

Leap second reception

Ready for leap second data reception and receiving Leap second data → P. 26

30 seconds to 18

minutes

This is performed automatically after GPS signal reception (automatic time adjustment, manual time adjustment, or time zone adjustment) on or after June 1st and December 1st.

GPS signal reception Q & A

Q : When

A : The watch does not automatically display the local time just by changing location.

Q : Is DST (Daylight Saving Time) automatically changed by receiving GPS signals? A :

Q : Is it necessary to carry out special operation for years in which a leap second is added?

: No particular operation is necessary.

the watch is moved to a different time zone, does the watch automatically display the

local time?

If you are in a place where GPS signals can be easily received, adjust the time zone. The watch automatically displays the local time. When you are in a place where GPS signals cannot be received, perform manual time difference setting (selection). → How to perform manual time difference setting (selection)　P. 23 (The watch can be set to any time zone (time difference) around the world.)

Perform time difference setting (selection) manually. → How to perform manual time difference setting (selection)　P. 23 (Signals from GPS satellites do not contain DST (daylight saving time or “summer time”) information.) Even within the same time zone, some countries or regions may not follow DST (daylight saving time or “summer time”). → List of time differences around the world (for reference)　P.

As leap second data is received at the same time as GPS signal reception (automatic time adjustment or manual time adjustment) on or after June 1st and December 1st, leap seconds are automatically inserted when GPS signals are periodically received. See "Leap second (Automatic leap second reception function)"　P. 26 for details.

BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)

Check that reception was successful (reception result display)

The reception result (success or failure) for the last GPS radio reception is displayed for 5 seconds.

Press Button A once and then

release it

The seconds hand displays the reception result.

Press

and then

release

* When

Button A is kept pressed, the watch enters the

Manual time adjustment operation.

The result of the reception is displayed

The seconds hand displays the result of the GPS signal reception (time adjustment or time zone adjustment).

Seconds hand

ASTRON 3X22 GPS SOLAR

Seconds hand: Reception result (success/failure)

Result Successful Failed

Display

Position Y 8-second position

* After 5 seconds have elapsed or when Button B is

pressed,

the watch returns to the time display mode.

N 52-second

position

When the reception result is Y

• The reception was successful.

Use the watch as it is.

When the reception result is N

• Move to the outdoors where GPS

signals can be easily received as necessary to receive GPS signals.

→

Place where GPS signals can be easily received/Place where GPS signals cannot be received P. 16

* When approximately four days have elapsed after

successful reception, the reception result display becomes “N”.

* Even under a state where GPS signal cannot be

received, the watch operates with quartz accuracy (at loss/gain ±15 seconds per month).

When the reception has failed in any way, manually set the time and date.

→ How to manually set the time P. 39

BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)

To adjust the time zone and time by GPS signal reception (Time Zone Adjustment)

Time zone adjustment

The time zone where you are is localized to adjust the watch to

precise current time by just one button operation anywhere

the in the world.

* DST (daylight saving time or “summer time”) is set manually

→ How to adjust the time zone P. 20

* Failure or success of reception depends on the reception environment. → Place where GPS signals can be easily

received/Place where GPS signals cannot be received　P. 16

* Even if reception was successful, DST (daylight saving time or “summer time”) is not set automatically. Please set

manually. → How to perform manual time difference setting (selection)　P. 23

GPS signal reception consumes considerable energy.

Expose the watch to light frequently, and charge the watch so that the energy level is “middle” or “full”.→ How to charge the watch　P. 14 (If the energy level is “low”, reception will not begin even if GPS signal reception is operated.) → Check the charging status　P. 13

ASTRON 3X22 GPS SOLAR

Precautions on time zone adjustment

When time zone correction is performed near a border between time zones, the time for the neighboring time difference (time zone) may be displayed.

some areas the boundaries observed by the watch may not exactly correlate to the actual

In time zone markers on the land. This does not indicate a malfunction.

In this case, please set (select) the time difference manually.

→ How to perform manual time difference setting (selection) P. 23

When the time zone is adjusted while traveling on land, avoid time zone boundaries to carry out time zone adjustment in the representative cities in the time zone whenever possible.

When using the watch near a time zone border, be sure to confirm the time and set (select) the time difference manually as necessary.

BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)

How to adjust the time zone

ASTRON 3X22 GPS SOLAR

Go to a place where GPS signals can be easily received

Move to the outdoors under an open sky with good visibility.

→ Place where GPS signals can be easily received/

where GPS signals cannot be received P. 16

Place

Continue to press Button B (3 seconds), and then release it when the seconds

hand moves to the 30-second position

The seconds hand will first move to the 30-second position, then the hour and minute hands will move to the 6-hour position.

* All three hands will point to the 6.

Press for

3 seconds

* If the energy level is “low”, reception will not begin

even if GPS signal reception is operated. Expose the watch to light to charge it. → How to charge the watch　P.

* When the seconds hand indicates

not begin even if GPS signal reception is operated. Please reset the in-flight mode ( ). → Reset the in-flight mode (

).　P.

, reception will

Direct the watch face upward and wait

* Please note that it may be difficult to receive GPS

signals while you are in motion.

It takes a maximum of 2 minutes to complete reception.

It depends on the

receiving conditions.

* To cancel the reception, press Button B.

Press

Button B

When the seconds hand points to “Y” or “N”, reception is completed

The reception result is displayed for 5 seconds. When reception was successful, the time and date will

be correct. After the seconds hand has displayed the reception

result, the hour, minute, and seconds hands will return to their normal display.

Reception

result

display

Display

State

Check that the reception is successful after the watch returns to the time display mode.

→

Check that reception was successful (reception result display) P. 18

* The buttons cannot be operated while the hour,

minute, and seconds hands and the date are moving.

* If DST (daylight saving time or “summer time”) is in

effect, perform settings (selection) manually. → How to perform manual time difference setting (selection)　P. 23

Y: Successful

(8-second

position)

Use the watch as it is.

N: Failed

(52-second

position)

When the reception result is displayed as → P. 16

“N”

BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)

To adjust only the time by GPS signal reception (manual time adjustment)

Manual time adjustment

The watch can be set to the correct current time for the set (selected) time difference. (The time zone will not be changed.)

→

How to manually adjust the time P. 22

* The correct time for the set (selected) time difference can be displayed by performing manual time adjustment.

When the region or time zone where the watch is used has changed, perform time zone adjustment. → How to adjust the time zone　P. 20 (As the time and date will match the set time zone when time zone adjustment is performed, it is not necessary to perform manual time adjustment immediately afterward.)

DST (daylight saving time or "summer time") is not set automatically. Please perform time difference setting (selection) manually.

→ How to perform manual time difference setting (selection)　P. 23

ASTRON 3X22 GPS SOLAR

* Failure or success of reception depends on the reception environment. → Place where GPS signals can be easily received/Place where GPS signals cannot be received　P. 16

* At the time when the reception was successful by manually adjusting the time, automatic time adjustment may be performed. For details, refer to "Automatic time adjustment"　P. 24.

GPS signal reception consumes considerable energy.

BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)

How to manually adjust the time

ASTRON 3X22 GPS SOLAR

Go to a place where GPS signals can be easily received

Move to the outdoors under an open sky with good visibility.

→ Place where GPS signals can be easily received/

where GPS signals cannot be received P. 16

Place

Continue to press Button A (3 seconds), and then release it when the seconds

hand moves to the 0-second position

The seconds hand will first move to the 0-second position, then the hour and minute hands will move to the 12-hour position.

* All three hands will point to the 12.

Press for

3 seconds

* If the energy level is “low”, reception will not begin

even if GPS signal reception is operated. Expose the watch to light to charge it. → How to charge the watch　P.

* When the seconds hand indicates

not begin even if GPS signal reception is operated. Please reset the in-flight mode ( ). → Reset the in-flight mode (

).　P.

, reception will

Direct the watch face upward and wait

It takes up to one minute to complete reception.

The reception time

depends on the reception conditions.

* To cancel the reception, press Button B.

Button B

Press

When the seconds hand points to “Y” or “N”, reception is completed

The reception result is displayed for 5 seconds. When reception is successful, the time and date will be

correct. After the seconds hand has displayed the reception

result, the hour, minute, and seconds hands will return to their normal display.

Reception

result

display

Display

State

Check that the reception is successful after the watch returns to the time display mode.

→

Check that reception was successful (reception result display) P. 18

When “Y” is displayed but the time is not correct, the time zone or DST (daylight saving time or “summer time”) settings may not match the current location. Perform time difference setting (selection) manually as necessary.

→ How to perform manual time difference setting

(selection) P. 23

* The buttons cannot be operated while the hour,

minute, and seconds hands and the date are moving.

Y: Successful

(8-second

position)

Use the watch as it is.

N: Failed

(52-second

position)

When the reception result is displayed as → P. 16

“N”

012

BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)

ASTRON 3X22 GPS SOLAR

Setting the destination time zone while in flight, etc. (manual time difference setting),

and setting/resetting DST (daylight saving time or “summer time”)

About manual time difference setting (selection)

When time zone adjustment cannot be performed, the time difference can be set (selected) manually.

Place where GPS signals can be easily received/Place where GPS signals cannot be received P. 16

→

Using "List of time differences around the world (for reference)"　P. 12 as a guide, the watch can be matched to the time and date of your location by setting the time difference (including the date).

How to perform manual time difference setting (selection)

Pull out the crown to the first click

The seconds hand will move to the 0-second position.

Pull out

to the

first click

* When in-flight mode is set, the seconds hand will

move to the 42-second position.

Turn the crown to set the watch to

the time at the destination

Each turn of the crown changes the time in 1-hour increments.

* Take note of which way you turn the crown.

When the time has been set in 1-hour increments, go to operation D

Turning the crown to the right moves the time 1 hour forward.

Turning the crown to the left moves the time 1 hour backward.

* To set the watch to the time at the destination, the

time and date must be set. If you turn the crown in the wrong direction, change direction and reset the date and time.

* A date up to about 2 weeks later (or earlier) can be

displayed. Note that changing the date too far will result in a date two weeks earlier (or later).

Pull out the crown to the second

click

When setting the time in 1-hour increments does not set the correct time, continue with setting the time in 15minute increments.

* Take note of which way you turn the crown.

* By making adjustments 4 times, an adjustment of 1

hour can be made.

Turning the crown to the right moves the time 15 minutes forward.

Turning the crown to

left moves the time

the 15 minutes backward.

* When in-flight mode is set, the seconds hand will

move to the 0-second position.

Push the crown back in

The seconds hand returns to the time display mode.

* The buttons cannot be operated while the hour,

minute, and seconds hands and the date are moving.

Push

back in

BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)

ASTRON 3X22 GPS SOLAR

Automatic time adjustment

This watch can be set to the precise current time by automatically receiving GPS signals by exposure to bright light outdoors under an open sky to adjust the time.

addition, when the watch is concealed under a sleeve and the dial is not exposed to sufficient light even if outdoors

In under an open sky, the watch stores the time of the previous successful manual time adjustment (or time zone adjustment), and automatically starts time adjustment at the same time.

* In a place without good visibility, GPS signals cannot be received. → Place where GPS signals can be easily received/Place where GPS signals cannot be received　P. 16

* If the energy is sufficiently charged, automatic reception will be performed every day.

* The automatic time adjustment is performed at most twice per day (At the time of sensing light, and at the time of previous successful manual time adjustment, it is performed

maximum once for each). Even if the reception fails, it may be performed one more time, according to the conditions.

* Since only automatic time adjustment by sensing light will be performed under factory default settings, before using the watch for the first time, please succeed the manual time

adjustment during the time zone when you will normally stay for a long time under the open sky where it is easy to receive signals.

* The time zone is not adjusted in the automatic time adjustment.

When the region where the watch is used is changed, please carry out time zone adjustment. How to adjust the time zone. → How to adjust the time zone　P. 20

< When it is difficult to expose to light sufficiently >

Even if outdoors under an open sky, when the watch is concealed under a sleeve in winter time, etc., in an area where the daylight hours are short, or when the watch is not likely to be exposed to sufficient light for a long time due to bad weather, the watch is designed to allow for automatic time reception at the time when the manual time adjustment was successful the last time. When the watch is exposed to the operating environment above, automatic time adjustment is likely to be successful by making manual time adjustment successful in time periods where the watch is frequently used in a place where GPS signals can be easily received under an open sky.

→ How to manually adjust the time P. 22

However, as the watch judges to start automatic time adjustment taking into consideration the following conditions, automatic time adjustment by exposure to bright light or at the time when the manual time adjustment was successful the last time.

• Charging status

• Past reception status

When the energy level is “low” or when in-flight mode (

When the energy level is “low”, expose the watch to light to charge it. → How to charge the watch　P. → Check the charging status　P. 13

* When the energy is reduced, the period for which automatic time adjustment is not performed becomes longer.

If the time zone adjustment or manual time adjustment is performed before the automatic time adjustment is started, the automatic time adjustment is not performed on that day.

) is set, automatic time adjustment does not work.

Keep in mind to charge the watch regularly.

the watch does not necessarily start

012

BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)

When boarding (in-flight mode ( ))

ASTRON 3X22 GPS SOLAR

In-flight mode ( )

Set to the in-flight mode ( ) where the reception may influence operation of other electronics devices in an airplane, etc.

In the in-flight mode ( ), the GPS signal reception (time zone adjustment, manual time adjustment, and automatic time adjustment) does not work.

< In-flight mode ( ) >

The mode is displayed when the crown is pulled out to the first click.

Set to the in-flight mode ( ).

Pull out the crown to the first click

The seconds hand will move, and the currently set inflight mode status (42-second) / reset (0-second) will be displayed.

Pull out

to the

first click

* Take note that turning the crown at this time will

perform manual time difference setting.

Reset the in-flight mode ( ).

Continue to press Button B

(3 seconds)

The seconds hand will move to the position.

(42-second)

Press for

3 seconds

Push the crown back in

Push

back in

→ Setting the destination time zone while in flight, etc.

(manual time difference setting),

and setting/resetting DST (daylight saving time or

“summer time”) P. 23

Turn off the in-flight mode when leaving an airplane, etc.

If it is not turned off, the watch will not be able to receive GPS signals.

Carry out operation A to C.

operation B, when the seconds hand points to

In the 0-second position, in-flight mode ( reset.

) is

* In operation B, the seconds hand shows a

“0-second position” and you can see that the in-flight mode ( ) has been canceled.

BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)

Leap second (Automatic leap second reception function)

ASTRON 3X22 GPS SOLAR

Leap second

The leap second is to compensate for deviations from the universal time (UT) which is astronomically determined and the “International Atomic Time (TAI).

“1 second” may be added (deleted) once a year or every few years.

Automatic leap second reception function

A leap second is automatically added by receiving “leap second data” from GPS signals at the time of leap second addition (delete).

“Leap second data” includes information about future leap second addition and current leap second data.

Receiving Leap Second Data

When GPS signal reception (automatic time adjustment, manual time adjustment, or time zone adjustment) is performed on or after June 1st and December 1st, leap second data may be received.

No particular operation is required.

After the completion of time adjustment (automatic time adjustment or manual time adjustment), up to 18 minutes may be required until receipt of leap second data is complete. Confirm the result (success or failure) of the leap second data.

→ Check whether leap second data reception was successful P. 27

When GPS signals are received under the following conditions, the leap second data reception is also started.

• GPS signals have not been received for a long time

• Leap second data reception has failed

GPS signal reception, leap second data reception will be performed again. This will

With continue until leap second data reception is successful. Confirm the result (success or failure) of the leap second data reception.

→ Check whether leap second data reception was successful P. 27

BASIC OPERATION (HOW TO SET THE TIME/HOW TO RECEIVE GPS SIGNALS, ETC.)

Check whether leap second data reception was successful

The reception result (success or failure) of the regular leap second data reception is displayed for 5 seconds.

ASTRON 3X22 GPS SOLAR

Press Button A once and then release it

The seconds hand will indicate the reception result.

Press

and then

release

* When

Button A is kept pressed, the watch enters the

Manual time adjustment operation.

The result of the reception is displayed

The seconds hand displays the result of the GPS signal reception (time adjustment or time zone adjustment).

Seconds hand: Reception result (success/failure)

Result Successful Failed

Display

Position Y 8-second position

* After 5 seconds have elapsed or when Button B is

pressed,

the watch returns to the time display mode.

N 52-second

position

Press Button A and then release it while the result of the reception is displayed (for 5 seconds) in step 2

The seconds hand displays the result of the leap second data reception (successful / failed). The

minute hand moves to the 32-minute position (LS), indicating that there is a “leap second information reception result”.

Seconds hand

Press

and then

release

Seconds hand: Reception result (success/failure)

Result Successful Failed

Display

When the leap second data reception result is Y (successful)

• The leap second data reception was successful.

Use the watch as it is.

When the leap second data reception result is N (failed)

• The leap second data reception, periodically

performed, has not been successful. It

will be performed automatically with the next GPS signal reception (automatic time adjustment, manual time adjustment or time zone adjustment). Use the watch as it is.

* The leap second data is received on or after

December 1st and June 1st.

* Even when the leap second data reception has not

been successful, the time is correct until the leap second data is added (deleted).

Move to the outdoors where GPS signals can be easily received as necessary to receive GPS signals.

→ Place where GPS signals can be easily received/

Place where GPS signals cannot be received P. 16

Position Y 8-second position

* After 5 seconds have elapsed or when Button B is

pressed,

the watch returns to the time display mode.

N 52-second

position

IN CASE OF AN UNUSUAL MOVEMENT OF THE SECONDS HAND

Seconds hand movement and watch state (energy depletion forewarning function)

Movement of the seconds hand shows the state of the watch (working functions).

ASTRON 3X22 GPS SOLAR

2-second interval movement/5-second interval movement are brought about

When

the energy stored in the watch runs low, the energy depletion forewarning function

will work. When the energy stored in the watch runs low, charge the watch by expose to light.→ How

to charge the watch　P.

* When the energy depletion forewarning function works, the watch does not operate even with operation of the

buttons and crown. (Be assured that it does not mean a failure)

State

Restriction on

function/display

Solution

2-second interval movement 5-second interval movement

The seconds hand moves at 2-second intervals.

• Reception is not started even with

operation of GPS signal reception.

• Automatic

① First, charge the watch by expose to light

until intervals.

→ How to charge the watch P. 14

② Charge the watch until the energy level is

“middle” or “full”. (If the energy level is “low”, GPS signals cannot be received.)

→ Check the charging status P. 13

time adjustment does not work.

the seconds hand moves at 1-second

The seconds hand moves at 5-second intervals.

• The hour and minute hands and the date

stop

• Reception is not started even with

operation of GPS signal reception.

• Automatic

① Charge the watch until the energy level is

“middle” or “full”.

Check the charging status P. 13

→

② Carry out time zone adjustment to set the

time.

→ How to adjust the time zone P. 20

time adjustment does not work.

The seconds hand stops at the 15-second position/45-second position (Power save function)

When

Power Save 2

* While

* If the “ Power Save 2” mode is prolonged, the stored power amount drops and the internal current time information

the watch is not exposed to light for a long time, the power save function will work.

The seconds hand stops pointing at the 15-second position.

State

• The hour and minute hands and the date stop

Restriction on

function/display

Cause

Solution

the watch is being charged, the seconds hand moves at “5-second intervals.” During the “5-second Interval

Movement,” the buttons cannot be operated.

stored will be lost.

• Automatic time adjustment is not performed.

When the watch is exposed to a state without receiving an adequate light source for 72 hours or longer.

• When the watch is exposed to an adequate light

source for more than 5 seconds, or when any button is pressed, it displays the current time again after the seconds hand is rapidly advanced.

Power Save 1 Power Save 2

The seconds hand stops pointing at the 45-second position.

• The hour and minute hands and the date stop

(The date becomes “1”)

• Reception is not started even with operation of

GPS signal reception.

• Automatic time adjustment is not performed.

When the watch is in an insufficient charging state for a long time.

① Charge the watch until the energy level is

“middle” or “full”.

→ Check the charging status P. 13

② Set the standard position of the date.

→ Set the standard position of the date and the

hour and minute hands P. 41

③ Carry out time zone adjustment to set the time.

→ How to adjust the time zone P. 20

TO PRESERVE THE QUALITY OF YOUR WATCH

ASTRON 3X22 GPS SOLAR

Daily care

●The watch requires good daily care

• Do not wash the watch when its crown is in the extended position.

• Wipe away moisture, sweat or dirt with a soft cloth.

• After soaking the watch in seawater, be sure to wash the watch in clean pure water and wipe it

dry carefully.

not pour running water directly from a faucet onto the watch. Put some water into a bowl first,

Do and then soak the watch in the water to wash it.

* If your watch is rated as “non-water resistant” or “water resistant for daily use,” do not wash the watch.

→ Performance and caliber / case number　P. 29 → Water resistant performance　P. 29

Turn the crown from time to time

●

• In order to prevent corrosion of the crown, turn the crown from time to time.

●Press the buttons once in a while

• Press the buttons once in a while to prevent corrosion of the buttons

Performance and caliber / case number

The case back shows the caliber and performance of your watch

Water resistant

performance

Magnetic resistant

performance

Caliber/case number

• Water resistant performance

Refer to P. 29

Caliber/case number

•

The number to identify the type of your watch.

* The above illustration is provided as an example, therefore it may not be exactly the same as your watch.

• Magnetic resistant performance

Refer to P. 30

Water resistant performance

Refer to the table below for the description of each degree of water resistant performance of your watch before using.

Indication on the case back Water resistant performance Conditions of Use

WATER RESISTANT

10(20)BAR

Water resistance for everyday life at 10 (20) barometric pressures

This watch can be used for swimming and other such sports. The watch is suitable for diving without an air cylinder.

TO PRESERVE THE QUALITY OF YOUR WATCH

ASTRON 3X22 GPS SOLAR

Magnetic resistance

Affected by nearby magnetism, a watch may temporarily gain or lose time or stop operating.

watch will automatically adjust the position of the hands if the time is rendered incorrect through magnetism,

* This

through the automatic hand position alignment function. (P. 40)

This watch has magnetic resistance which complies with ISO “Magnetic resistant watches.”

bCAUTION

Keep the watch more than 5 cm away from magnetic products.

If the watch becomes magnetized and its accuracy deteriorates to an extent exceeding the specified rate under normal use, the watch needs to be demagnetized. In this case, you will be charged for demagnetization and accuracy readjustment even if it happens within the guarantee period.

The reason why a watch is affected by magnetism

built-in motor is provided with a magnet, which may be influenced by a strong external magnetic

The field.

Examples of common magnetic products that may affect watches

Smartphone, cellular phone,

tablet terminal (speaker)

AC-powered shaver Magnetic cooking

device

Portable radio

(speaker)

AC adapter Bag

(with magnet

Magnetic necklace Magnetic health

buckle)

pillow

TO PRESERVE THE QUALITY OF YOUR WATCH

ASTRON 3X22 GPS SOLAR

Band

The band touches the skin directly and becomes dirty with sweat or dust. Therefore, lack of care may accelerate deterioration of the band or cause skin irritation or stain on the sleeve edge.

The watch requires a lot of attention for long usage.

●Metallic band

• Moisture, sweat or soil will cause rust even on a stainless steel band if they are left for a long

time.

Lack of care may result in a rash or cause a yellowish or gold stain on the lower sleeve edge of

•

shirts.

• Wipe off moisture, sweat or soil with a soft cloth as soon as possible.

clean the soil around the joint gaps of the band, wipe it out in water and then brush it off with

• To

a soft toothbrush. (Protect the watch body from water splashes by wrapping it up in plastic wrap etc.) Clean it off with a soft cloth.

• Because some titan bands use pins made of stainless steel, which has outstanding strength,

rust may form in the stainless steel parts.

• If rust advances, pins may poke out or drop out, and the watch case may fall off the band, or the

clasp may not open.

• If a pin is poking out, personal injury may result. In such a case, refrain from using the watch and

request repair.

Leather band

●

• A leather band is susceptible to discoloration and deterioration from moisture, sweat and direct

sunlight.

• Wipe off moisture and sweat as soon as possible by gently blotting them up with a dry cloth.

• Do not expose the watch to direct sunlight for a long time.

• Please take care when wearing a watch with light-colored band, as dirt is likely to show up.

• Refrain

and when working with water even if the watch itself is water resistant enforced for daily use (10BAR/20-BAR water resistant).

from wearing a leather band watch other than Aqua Free bands while bathing, swimming,

●

Polyurethane band

• A polyurethane band is susceptible to discoloration from light, and may be deteriorated by

solvent or atmospheric humidity.

Especially a translucent, white, or pale colored band easily adsorbs other colors, resulting in

•

color smears or discoloration.

• Wash out dirt in water and clean it off with a dry cloth.

(Protect the watch body from water splashes by wrapping it up in plastic wrap etc.)

• When the band becomes less flexible, have the band replaced with a new one. If you continue

to use the band as it is, the band may develop cracks or become brittle over time.

Silicone band

●

• As for material characteristics, the band is easily dirtied, and may be stained and discolored.

Wipe off dirt with a wet cloth or cleaning tissue.

• Unlike bands of other materials, cracks may result in the band being cut. Take care not to damage

the band with an edged tool.

Notes on skin irritation and allergy

Notes on the length of the band

Skin irritation caused by a band may result from various factors such as allergy to metals or leathers, or skin reactions against friction on dust or the band itself.

Adjust the band to allow a little clearance with your wrist to ensure proper airflow. When

wearing the watch, leave enough room to insert a

finger between the band and your wrist.

TO PRESERVE THE QUALITY OF YOUR WATCH

ASTRON 3X22 GPS SOLAR

How to use an easy adjust type clasp

Some bands are provided with an easy adjust band’s length.

If the clasp of the watch you purchased is as follows, please refer to the following instructions.

* The band can be lengthened by up to about 5 mm.

●How to wear the band (opening and closing the clasp) ●How to adjust the length of the band

type clasp for fine adjustment of the

This is useful if the band feels too tight or is uncomfortable for some reason.

Lightly

clasp.

* Note that pressing the push buttons too firmly

press the push buttons to open the

(deeply) actuates the adjuster, which lengthens the band.

Push button Buckle

Fasten the clasp by pressing the frame of

the buckle.

can lengthen the band by up to about

You

5 mm (2 stages) by firmly pressing the push buttons from both sides to actuate the adjuster.

* The above illustrations are provided as examples. Some details may differ depending on the model.

Fasten the clasp by pressing the frame of

the buckle.

Even while the clasp is closed, you can still

retract the length of band extended by the adjuster.

TO PRESERVE THE QUALITY OF YOUR WATCH

ASTRON 3X22 GPS SOLAR

How to use an adjustable three-fold clasp

Some bands are provided with an adjustable three-fold clasp.

If the clasp of the watch you purchased is as follows, please refer to the following instructions.

●How to wear or take off the watch ●How to adjust the length of the band

Press the push buttons on both sides of

the flap; pull the buckle up. The band will automatically come out of the loop.

Buckle

Fixed loop

Movable loop

Push button

Flap

the tip of the band into the movable

Place

loop and fixed loop, and fasten the clasp by pressing the frame of the buckle.

Press the push buttons on both sides of

the flap; pull the buckle up. The band will automatically come out of the loop.

Buckle

Fixed loop

Movable loop

Press the push buttons again to unfasten

the flap.

* The above illustrations are provided as examples. Some details may differ depending on the model.

Push button

Flap

Pull the pin out of an adjustment hole of

the band. Slide the band to adjust its length

and find an appropriate hole. Place

the pin into the hole.

Adjustment hole

Fasten the flap.

TO PRESERVE THE QUALITY OF YOUR WATCH

ASTRON 3X22 GPS SOLAR

How to use an adjustable three-fold clasp (Pointed tip diving type)

The rubber bands and some leather bands are provided with an adjustable three-fold clasp (Pointed tip diving type) of the type where the pointed tip of the band dives downward as shown in the figure.

If the clasp of the watch you purchased is as follows, please refer to the following instructions.

●How to wear or take off the watch ●How to adjust the length of the band

Open the clasp and pull upward by

pressing the buckle.

the push buttons on both sides of

Buckle

Push button

Band

Fasten the clasp by pressing the frame of

the buckle.

Open the band clasp by pushing the

buttons on both sides of the clasp.

Buckle

Push button

Adjustment hole

Pull

both locations.

Band

the pins out of the adjustment holes at

* The above illustrations are provided as examples. Some details may differ depending on the model.

Slide the band to the right and left and at

appropriate length, push the pins firmly

an into the adjustment holes again at those 2 locations.

TO PRESERVE THE QUALITY OF YOUR WATCH

If your watch has Lumibrite

ASTRON 3X22 GPS SOLAR

Lumibrite

Lumibrite for approximately 10 minutes, Lumibrite can emit light for 3 to 5 hours. Please note, however, that, as Lumibrite emits the light it stores, the luminance level of the light decreases gradually over time. The duration of the emitted light may also differ slightly depending on such factors as the brightness of the place where the watch is exposed to light and the distance from the light source to the watch.

* In general, when coming from a place that is bright to a place that is dark, it takes human eyes some time to adapt to the darkness making it difficult to see objects initially. (Dark adaptation)

* Lumibrite is luminous paint that stores and emits light, which is harmless to human beings and the environment, containing no toxic materials such as radioactive substances.

is a luminous paint that absorbs the light energy of sunlight and lighting apparatuses in a short time and stores it to emit light in the dark. For example, if exposed to a light of more than 500 lux

Condition Illumination

Sunlight

Indoor (Window-side during daytime)

Lighting apparatus (40-watt daylight fluorescent light)

Fine weather 100,000 lux

Cloudy weather 10,000 lux

Fine weather more than 3,000 lux

Cloudy weather 1,000 to 3,000 lux

Rainy weather less than 1,000 lux

Distance to the watch: 1 m 1,000 lux

Distance to the watch: 3 m 500 lux (average room luminance)

Distance to the watch: 4 m 250 lux

TO PRESERVE THE QUALITY OF YOUR WATCH

ASTRON 3X22 GPS SOLAR

Power Source

The battery used in this watch is a special secondary battery, which is different from ordinary batteries. Unlike an ordinary silver oxide battery, the secondary battery does not require periodic replacement.

The

capacity or charging efficiency may gradually lower due to long-term use or operating environment. In addition, long-term use may shorten the charge duration due to wear, contamination, lubricant deterioration of mechanical parts, etc. Request repair when the performance lowers.

bWARNING

Notes on replacing the secondary battery

• Do not remove the secondary battery from the watch.

Replacement of the secondary battery requires professional knowledge and skill. Please ask the retailer from whom the watch was purchased for replacement of the secondary battery.

• Installation of an ordinary silver oxide battery can generate heat that can cause bursting

and ignition.

* Overcharge prevention function

When the secondary battery is fully charged, the overcharge prevention function is automatically activated to avoid further charging. There secondary battery is charged in excess of the “time required for fully charging the watch.”

* Refer to "Standard Charging Time"　P. 14 to check the time required for fully charging the watch.

is no need to worry about damage caused by overcharging no matter how much the

bWARNING

Notes on charging the watch

• When charging the watch, do not place the watch in close proximity to an intense light

source such as lighting equipment for photography, spotlights or incandescent lights, as the watch may be excessively heated resulting in damage to its internal parts.

• When charging the watch by exposure to direct sunlight, avoid places that easily reach

high temperatures, such as a car dashboard.

• Always keep the watch temperature under 60°C.

* When the watch has not been charged for a long time

the watch has not been charged for a long time, the watch will be completely discharged and no

longer able to be charged. In this case, consult the retailer from whom the watch was purchased.

TO PRESERVE THE QUALITY OF YOUR WATCH

ASTRON 3X22 GPS SOLAR

After sales service

●Notes on guarantee and repair

• Contact the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE

CENTER for repair or overhaul.

• Within the guarantee period, present the certificate of guarantee to receive repair services.

• Guarantee coverage is provided in the certificate of guarantee.

Read carefully and retain it.

• For repair services after the guarantee period has expired, if the functions of the watch can be

restored by repair work, we will undertake repair services upon request and payment.

Replacement with functional parts

●

• Normally, the warranty period for this watch’s replacement parts is a standard 7 years.

Replacement parts are parts for which repair is necessary to maintain the time function.

• Please

whose outward appearance may differ from the originals.

keep in mind that if original parts are not available, they may be replaced with substitutes

Inspection and adjustment by disassembly and cleaning (overhaul)

●

• Periodic inspection and adjustment by disassembly and cleaning (overhaul) is recommended

approximately a long time. According to use conditions, the oil retaining condition of your watch mechanical parts may deteriorate, abrasion of the parts may occur due to contamination of oil, which may ultimately lead the watch itself to stop. As the parts such as gasket may deteriorate, water-resistant performance may be impaired due to intrusion of perspiration and moisture. Please contact the retailer from whom the watch was purchased for inspection and adjustment by disassembly and cleaning (overhaul). For replacement of parts, please specify “SEIKO GENUINE PARTS.” When asking for inspection and adjustment by disassembly and cleaning (overhaul), make sure that the gasket and push pin are also replaced with new ones.

• When your watch is inspected and adjusted by disassembly and cleaning (overhauled), the

movement of your watch may be replaced.

once every 3 to 4 years in order to maintain optimal performance of the watch for

TROUBLESHOOTING

ASTRON 3X22 GPS SOLAR

When the watch is unable to receive GPS signals

Points to be checked

When the watch does not start receiving or is unable to receive GPS signals even with operation of GPS signal reception, the following can be considered.

●Reception is not started even with operation of GPS signal reception

(time zone adjustment/manual time adjustment).

• Confirm the energy level and in-flight mode.

Reception is not allowed

Operation Push Button B and release Pull out the crown to the first click

When the energy level is “low”, the seconds

hand will indicate the 10-second position.

Display

Charging status

During in-flight mode ( ), the seconds

hand will indicate the 42-second position.

In-flight mode (

)

●Reception is not possible even with operation of GPS signal reception

(time

zone adjustment/manual time adjustment) (The reception result is

displayed as “N.”)

• Move to a place where GPS signals can be easily received.

→ Place where GPS signals can be easily received/Place where GPS signals cannot be received　P. 16

●The seconds hand stops at the 45-second position before the reception

is completed (The watch enters the power save 2 state)

• If GPS signal reception is performed under low temperatures (0°C or less) in a state

where the charging capacity and/or charging efficiency are lowered, the reception will be stopped, and the watch may enter the power save 2 state. GPS signal reception consumes a significant amount of energy. Keep in mind to charge the watch regularly by exposure to light.→ How to charge the watch　P. If this occurs frequently, consult the retailer from whom the watch was purchased.

Adjust the time under a condition in which the watch is

Solution

Charge the watch by exposure to light until the indicator hand points to the “middle” position or “full” position.

How to charge the watch P. 14

→

Reset the in-flight mode (

→

unable to receive GPS signals (Manual time setting)

). P.

Manual time setting

When a problem cannot be solved even by carrying out the "Points to be checked", or time is gained or lost under a condition in which the watch is unable to receive GPS signals and the watch is unable to receive GPS signals continuously, set the time manually.

012

TROUBLESHOOTING

How to manually set the time

ASTRON 3X22 GPS SOLAR

• When

• When adjusting the time, the date will also be adjusted.

The seconds hand will move to the 0-second position.

using the watch again under a condition in which the watch is able to receive GPS signals,

receive GPS signals to set the time.

Pull out the crown to the second click

Pull out

the crown to

the second

click

* 3 seconds after pressing Button B, the seconds hand

will move to the 18-second position. Please continue pressing the button.

The seconds hand moves to stop at the 0-second position.

The watch enters the manual time setting mode.

* When the watch enters the manual time setting

mode, the reception result will be displayed as since the reception results data will be lost.

Press Button B continuously for 6 seconds, then release when the seconds hand moves to the 0-second position

Press for

seconds

“N”,

Turn the crown to set the time

Turn the crown clockwise to advance the time.

Turn quickly to move continuously. Turn again to stop moving.

Turn the crown counterclockwise to set back the time.

* When it has moved continuously for 12 hours, it will

stop. Turn the crown to continue setting.

The point in which the date changes is at 0:00 AM (12:00 PM). Set the time taking into consideration AM or PM.

Push the crown back in (simultaneously with a time signal)

Operation has been completed. The watch resumes its normal movement.

Push

back in

* Even if GPS signals cannot be received, the watch can be used with the same accuracy as a normal quartz watch. (at loss/gain ±15 seconds per month on average)

If the watch receives GPS signals after manual time setting, it displays the received time.

TROUBLESHOOTING

When the date or the position of the hour, minute, or seconds hand is incorrect

ASTRON 3X22 GPS SOLAR

Points to be checked

●Reception

was successful (the reception result is displayed as “Y”), but

time has gained or lost.

• The set time difference (including DST (daylight saving time or “summer time”)) may

differ.

the time difference setting differs from the current location, set the time difference through

When one of these operations. When in a location with good reception → How to adjust the time zone　P. 20 When in a location with no reception → How to perform manual time difference setting (selection)　P. 23

• Automatic time adjustment may not get activated for a few days.

→ Automatic time adjustment　P. 24

The automatic time adjustment function is unlikely to be activated due to low energy stored in the watch or depending on the environment. To immediately adjust the time, refer to "How to adjust the time zone"　P. 20.

Preliminary position

When the time and date are not correct even after signal reception was successful, the standard position may be incorrect.

The preliminary position is misaligned due to the following reasons.

Strong impact such as dropping or hitting

When comparing the state of “Misaligned Preliminary Hand Position” to that of a weight scale, it is like “a scale which is unable to display the correct weight because its needle is not set to the zero position before weighing.”

Things around you which generate magnetism → Examples of common magnetic products that may affect watches　P.

Setting the standard position of the hour, minute, and seconds hands (automatic hand position alignment function)

The “automatic hand position alignment function” automatically adjusts the hour, minute, and seconds hands when the standard positions are incorrect.

automatic hand position alignment function acts once per 12 hours for the hour hand (at noon

The and midnight), once per hour for the minute hand, and once per minute for the seconds hand.

* This function works when the preliminary hand position is misaligned due to external factors such as strong impact

or magnetic influence. It does not work to adjust accuracy of the watch or slight misalignment which may occur during the manufacturing process.

* The standard positions of the hour and minute hands can be adjusted manually.

→ Set the standard position of the date and the hour and minute hands　P. 41

Setting of the standard position of the date

As the standard position of the date is not adjusted automatically, it must be set manually. →

Set the standard position of the date and the hour and minute hands P. 41

012

TROUBLESHOOTING

ASTRON 3X22 GPS SOLAR

Preliminary position of this watch

preliminary position of the date is “1” (1st).

The

The preliminary position of the hour/minute hands is “12:00 AM”.

Set the standard position of the date and the hour and minute hands

Pull out the crown to the second

click

The seconds hand will move to the 0-second position.

Pull out

the crown to

the second

click

Continue to press Button B

(3 seconds)

The watch enters the mode for setting the standard position of the date.

* During

The seconds hand stops at the 18-second position.

The date moves, and stops when it indicates the standard position.

movement of the date, the buttons cannot be

operated.

Press for

seconds

Turn the crown to adjust the date to

“1”

Adjust so that the numeral “1” appears in the center of the date window.

* If “1” is displayed, go to operation D

Turn the crown clockwise to advance 1 step.

Turn quickly to move continuously. Turn again to stop moving.

Turn the crown counterclockwise 1 step.

to set back

012

TROUBLESHOOTING

ASTRON 3X22 GPS SOLAR

Press Button B and then release it

The watch goes into the preliminary position setting mode of the hour and minute hands.

Press

and then

release

The seconds hand stops at the 0-second position.

Continue to press Button A (3

seconds)

The hour/minute hands move, and stop at “12:00 AM”.

Press for

seconds

Push the crown back in

The watch exits the mode to adjust the preliminary position, and the seconds hand and the hour/minute hands start moving.

Push

back in

Set the time by receiving GPS

signals

When you are in a place where GPS signals can be easily received, adjust the time zone.

→ How to adjust the time zone P. 20

When operations A - F are complete, be sure to set the time.

When you are in a place where GPS signals cannot be received

① Set the time difference and date manually

How to perform manual time difference setting

→

(selection) P. 23

② Manually set the time

→ How to manually set the time P. 39

When the time is set, operation is completed.

TROUBLESHOOTING

Troubleshooting Possible causes Solutions Reference pages

The seconds hand moves at 2-second intervals.

The seconds hand moves at 5-second intervals.

Troubleshooting

Charge the watch fully until the energy level is “middle” or “full”.

The energy depletion forewarning function is activated. (P. 28) If the seconds hand moves at 2 or 5-second intervals while you wear the watch every day, the watch is in a condition where it cannot acquire sufficient light, for instance, the watch is concealed under a long sleeve shirt.

Be careful not to conceal the watch under a sleeve, etc., while wearing it. When taking off the watch, place it in as bright a location as possible.

ASTRON 3X22 GPS SOLAR

middle

P. 13 P. 14

Hand Movement

The stopped seconds hand pointing to the 15-second position started operating.

The stopped seconds hand pointing to the 45-second position started operating.

The watch hands advance rapidly unless a button is pressed. After the rapid advancement is completed, the watch resumes its normal 1-second interval movement.

The power save function 1 has been activated. (P. 28) When the watch has not been exposed to sufficient light continuously, the power save function 1 to limit energy consumption is automatically activated.

The power save function 2 has been activated. (P. 28) When the watch is not sufficiently charged for a certain period of time, the power save function 2 is automatically activated.

The power save function has been activated. (P. 28) The automatic hand position alignment function was activated. When the hand positions deviate to display incorrect time as a result of external influences, etc., the watch automatically corrects the hand misalignment by the automatic hand position alignment function.

When the watch is exposed to light, the hand will rapidly advance and return to the current time. When the watch returns to the current time, use it as is. (This is not an abnormal movement.)

① Charge the watch fully until the energy level is “middle” or “full”. ② After that, when the time is incorrect, adjust the time zone as necessary.

No operation is needed (this is not an abnormal movement.) -

P. 13 P. 14

P. 19 - 20

TROUBLESHOOTING

Troubleshooting Possible causes Solutions Reference pages

Reception is not started even with operation of time zone adjustment/ manual time adjustment

GPS signal

reception

GPS signals cannot be received even by carrying out GPS signal reception (The reception result is displayed as “N”.)

Reception is possible (reception result display becomes “Y”), but the time and date are not accurate (when it is understood as a reception result after time adjustment)

ASTRON 3X22 GPS SOLAR

The charging status display is “low”. (P. 11) * The energy level can be seen by pressing and

releasing Button B.

The in-flight mode ( * In-flight mode (

crown out to the first click.

You are in a place where GPS signals cannot be received. (P. 16) Receive GPS signals in a place where GPS signals can be easily received. P. 16

A time difference from that of the current location is set.

The setting for the time difference (including DST (daylight saving time or “summer time”)) does not match the time of the current location.

) has been set. (P. 25)

) can be checked by pulling the

Charge the watch sufficiently until the charging status is displayed as the “middle” position or “full” position.

middle

After relocation from a place under restriction on use of GPS signals (in an airplane, etc.), reset the inflight mode ( ).

Check the time difference (time) setting. Reset the time difference if different from the time of the current location.

• When you are in a place where GPS signals can be easily received → How to adjust the time

zone　P. 20

• When in a location with no reception → How to perform manual time difference setting (selection)　

P. 23

Reset the time difference if different from the time of the current location. → How to perform manual time difference setting (selection)　P. 23

P. 13

P. 25

P. 20 P. 23

P. 23

TROUBLESHOOTING

Troubleshooting Possible causes Solutions Reference pages

Reception is possible (reception result display becomes “Y”), but the time and date are not accurate (when it is understood as a reception result after time zone adjustment)

GPS signal

reception

The reception result is displayed as “Y”, but the time is gained or lost by one to two seconds.

The automatic time adjustment function is not activated every day

Automatic reception is not activated.

ASTRON 3X22 GPS SOLAR

The setting for the time difference (including DST (daylight saving time or “summer time”)) does not match the time of the current location.

The positions of the hands are misaligned due to external influences. The standard positions of the hands are incorrect. → Preliminary position　P. 40

The automatic time adjustment function has not been activated for a few days. When energy is insufficient, the automatic time adjustment may operate only once every 3 days. P. 24

The energy stored in the watch is insufficient. Conditions to activate the automatic time adjustment function are not prepared.

The watch is not in an environment where GPS signals can be received at the moment when the watch is exposed to light.

Reset the time difference if different from the time of the current location. → How to perform manual time difference setting (selection)　P. 23

① <Hour/minute hand misalignment> The automatic hand position adjustment function is activated to

automatically adjust the positions. Please use the watch as it is. The automatic hand position alignment function is activated once a minute for the seconds hand, once an hour for the minute hand, and once every 12 hours for the hour hand. <Date misalignment> Since the preliminary position is not automatically adjusted, manually adjust the position.

② If the hands are not corrected, refer to "Set the standard position of the date and the hour and minute

hands" and perform the operations.

③

When misalignment of the hand is not adjusted even with operation of whom the watch was purchased.

Sufficient energy is necessary to activate the automatic time adjustment function every day. Keep in mind to frequently expose your watch light to charge its battery. The automatic time adjustment is automatically activated by exposure to bright light when you are in a place that easily receives GPS signals.

While the watch has a function that automatically starts receiving when exposed to light, it also has a function that activates “automatic time adjustment” at the time that “manual time adjustment” was last successful, even in environments that are not exposed to light. Normally, we recommend that, to succeed with manual time adjustment, do it at a specific time, at which you think you will be in an environment that can receive GPS signals. Automatic time adjustment function judges the situation. Thereby the automatic time adjustment function gets activated even in the case of not been able to receive light.

, consult the retailer from

P. 23

P. 40 P. 41

P. 24

P. 22

TROUBLESHOOTING

Troubleshooting Possible causes Solutions Reference pages

The seconds hand position indicating the reception result is incorrect

Misalignment of

time and hands

Charging the solar battery

Misalignment of

date

The watch temporarily gains or loses time.

The time is gained (lost) 1 hour

The stopped watch was exposed to an adequate light for longer than the time required to fully charge the watch, however, it does not resume its normal 1-second interval movements.

The seconds hand is stopped even when the watch is charged for longer than the time required to fully charge the watch

After the reception is successful, the time is correct but the date is incorrect.

The standard position of the seconds hand is incorrect. (This can occur when the position of the seconds hand is incorrect due to external influences.) → Preliminary position　P. 40

The automatic time adjustment function has not been activated for a few days.

The watch received an incorrect time due to external factors (erroneous reception).

The watch is left in an extremely high or low temperature place for a long time.

The setting for the time difference (including DST (daylight saving time or “summer time”)) does not match the time of the current location.

The amount of exposed light is too weak. The time for charging the watch is not sufficient.

The watch was not charged for a long time and has been discharged completely.

The preliminary position of the date is out of alignment. This problem occurs when the preliminary position of the date is out of alignment due to external influence etc.

① The automatic hand position alignment function is activated to automatically adjust the position.

② When misalignment of the hand is not adjusted, consult the retailer from whom the watch was

If the energy stored in the watch is insufficient, the automatic time adjustment function may be activated once in 3 days. To adjust the time immediately, carry out “manual time adjustment.”

① Receive GPS signals in a place where GPS signals can be more easily received. ② Adjust the time zone as necessary.

① If the watch is returned to a normal temperature place, the accuracy will be recovered. ② If the time is incorrect after that, manually adjust the time as necessary. ③ If the watch is not recovered, consult the retailer from whom the watch was purchased.

Reset the time difference if different from the time of the current location. → How to perform manual time difference setting (selection)　P. 23

The time required for charging the watch depends entirely on the amount of exposed light the watch receives. Refer to "Standard Charging Time" to charge the watch.

Contact the retailer from whom the watch was purchased. −

Adjust the preliminary position of the date to the correct position “1” (the first day of a month).

ASTRON 3X22 GPS SOLAR

Please use the watch as it is. The automatic hand position alignment function is activated once a minute for the seconds hand.

purchased.

P. 41 - 42

P. 40

P. 24 P. 22

P. 16 P. 20

P. 22

P. 23

P. 14

TROUBLESHOOTING

Troubleshooting Possible causes Solutions Reference pages

The crown or buttons cannot be operated.

Operation

You get lost in the middle of the operation.

Other trouble Blur in the display persists.

ASTRON 3X22 GPS SOLAR

The stored electric power is running short. Sufficiently charge the watch until it starts moving at 1-small second intervals. P. 14

Date is moving right after a setting is carried out by the crown or button operation.

Small amount of water has got inside the watch due to deterioration of the gasket, etc.

Wait without doing anything. After the date stops, the crown and buttons can be operated. -

When the crown is pulled out

① Push the crown back in. ② The seconds hand will move in at most 3 minutes. ③ After that, restart operation.

When the crown is not pulled out

① Press Button B. ② The seconds hand will move in at most 1 minute. ③ After that, restart operation.

Consult the retailer from whom the watch was purchased. -

FUNCTION LIST/SPECIFICATIONS

ASTRON 3X22 GPS SOLAR

Index

Functions to adjust the time

GPS signal reception → P.

Time zone adjustment

function....................................

→ P. 19

Manual time adjustment

function....................................

→ P. 21

Automatic time adjustment...

→ P. 24

Manual time difference

setting (selection)...................

→ P. 23

This function receives signals from GPS satellites, identifies the time zone of the current location with one button operation, and displays the correct current time. Use this when traveling to a region in a different time zone.

* DST (daylight saving time or “summer time”) is set manually

This function receives signals from GPS satellites and displays the correct current time of the set time difference (time). Use this to set the correct time that is normally used.

This function determines suitable timing inside the watch for receiving signals from GPS satellites, and automatically begins reception of signals. It displays the accurate current time for the set time difference.

This function enables changing of the time difference. Also use this function to set DST (daylight saving time or “summer time”).

Functions to charge

Solar Charging Function........

→ P. 14

Charging status display

function....................................

→ P. 13

Power Save Function.............

→ P. 28

The watch converts light to electrical energy and charges the battery, using the solar cell beneath the dial. The watch will operate for about 6 months on a full charge.

Roughly displays the energy charged in the watch. Also shows whether the watch is able to receive GPS signals.

The Power Save mode can be activated in order to reduce unnecessary energy consumption when the watch is left without an adequate light source.

FUNCTION LIST/SPECIFICATIONS

ASTRON 3X22 GPS SOLAR

SPECIFICATIONS

Function for reception

In-flight mode ( )..................

→ P. 25

Reception result display

function....................................

→ P. 18

Other functions

Automatic hand position alignment function

→ P. 40

Automatic leap second

reception function..................

→ P. 26

..................

Function to prevent the GPS signal reception function from working. Set this mode when boarding an airplane, etc.

Displays the latest reception result (success/failure).

Automatically corrects misalignment when the hands are misaligned due to external factors such as magnetic influence.

Automatically receives leap second data when leap second data reception is necessary.

1. Basic function Basic watch (hour, minute, and seconds hands), date display

2. Frequency of crystal oscillator

3. Loss/gain (monthly rate)

4. Operational temperature range

5. Driving system Step motor type: Basic watch (hour, minute, and seconds hands), date

6. Power source Secondary battery, 1 piece

7. Duration of operation About 6 months (on a full charge, without power save function)

8. GPS signal reception function

9. IC (Integrated Circuit) Oscillator, frequency divider and driving circuit C-MOSIC, 4 pieces

* The specifications are subject to change without prior notice due to product improvements.

Declaration of Conformity

32,768 Hz (Hz = Hertz ... Cycles per second)

Loss / gain ±15 seconds on a monthly rate (When the watch is used without an automatic a normal temperature range between 5°C and 35°C (41ºF and 95ºF)).

Between −10°C and +60°C (14ºF and 140ºF)

* If the Power Save is activated after it is fully charged, the watch continues to run for

Time zone adjustment, manual time adjustment, automatic time adjustment

* Between reception and the next reception, the watch operates with the above quartz

time setting by receiving GPS signal and when it is worn on the wrist within

approximately 2 years at maximum.

precision

Seiko Astron 3X22 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual