Casio 2758 User Manual
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MO0612-EA

Operation Guide COMBIWVGE1

About This Manual

The operational procedures for Modules 2734, 2758, 3748, 3749, 4773, and 4774 are identical. All of the illustrations in this manual show Modules 2734 and 2758.

Button operations are indicated using the letters shown in the illustration.

Modules 2734 and 2758 Modules 3748 and 3749 Modules 4773 and 4774

Each section of this manual provides you with the information you need to perform operations in each mode. Further details and technical information can be found in the “Reference” section.

General Guide

Press Cto change from mode to mode.

In any mode, press B to illuminate the display.

 

World Time Mode

Timekeeping Mode

Press C.

 

 

Hand Setting Mode

Radio-controlledTimekeeping

Hour hand

This watch receives a time calibration signal and update

Minute hand

its time setting accordingly. The time calibration signal

 

includes both Standard Time and Daylight Saving Time

 

(summer time) data.

 

This watch is designed to pick up the time calibration

 

signal transmitted from Rugby, England and the signal

 

from Mainflingen, Germany.

 

Current Time Setting

 

This watch automatically adjusts its digital time setting in

Day of week

accordance with a time calibration signal. You can also

Month – Day

perform a manual procedure to set the time and date,

when necessary.

 

The first thing you should do after purchasing this watch is to set your Home City, which is the city where you will normally use the watch. For more information, see “To set your Home City” below.

When using the watch that is outside of the range of the transmitters in Rugby and Mainflingen, you need to manually adjust the time as required. See “Timekeeping” for information about manual settings.

The analog time of this watch is synchronized with the digital time. Because of this, the analog time setting is automatically adjusted whenever you change the digital setting. See “Analog Timekeeping” for more information.

To set your Home City

1.In the Timekeeping Mode, hold down Auntil the transmitter indicator (A/T,MSF, orDCF) starts to flash, which indicates the setting screen.

If the displayed transmitter indicator shows something other than A/T, use Dto displayA/T before advancing to the next step.

2.Press Cto display the city code setting screen.

3.Use D(east) and B(west) to select the city code you want to use as your Home City.

City code

The following are the city codes for major cities in the Western Europe time zones.

LON: London

PAR andBER: Paris, Berlin, Milan, Rome, Amsterdam, Hamburg, Frankfurt, Vienna, Barcelona, Madrid

4. Press A twice to exit the setting screen.

The first press of Adisplays the 12/24-hoursetting screen. Pressing A again exits the setting screen.

Important!

Normally, your watch should show the correct time as soon as you select your Home City code. If it does not, it should adjust automatically after the next auto receive operation (in the middle of the night). You can also perform manual receive or you can set the time manually.

If you are in an area that does not use Daylight Saving Time (summer time), turn off the DST setting.

See “Transmitters” for details about the transmitter indicator.

Time Calibration Signal Reception

There are two different methods you can use to receive the time calibration signal: auto receive and manual receive.

Auto Receive

With auto receive, the watch automatically picks up the time calibration signal five times a day at 0:00 a.m., 1:00 a.m., 2:00 a.m., 3:00 a.m., and 4:00 a.m. For more information, see “About Auto Receive”.

Manual Receive

Manual receive lets you start a time calibration receive operation with the press of a button. For more information, see “To perform manual receive”.

Alarm Mode

Date Alert Mode

Stopwatch Mode

Time Recorder Mode

Important!

Position the watch as shown in the nearby illustration, with its 12 o’clock side facing towards a window. Make sure there are no metal objects nearby.

Resin Band Metal Band

The watch should not be on its side or facing the wrong way.

Proper signal reception can be difficult or even impossible under the conditions listed below.

Inside or

Inside a

Near

Near a

Near high-

Among or

among

vehicle

household

construction

tension

behind

buildings

 

appliances or

site, airport, or

power lines

mountains

 

 

office

other sources

 

 

 

 

equipment,

of electrical

 

 

 

 

or a mobile

noise

 

 

 

 

phone

 

 

 

Signal reception is normally better at night than during the day.

Time calibration signal reception takes from two to five minutes, but in some cases it can take as long as 12 minutes. Take care that you do not perform any button operations or move the watch during this time.

1,500 kilometers

Rugby

 

500 kilometers

Mainflingen

 

At distances further than about 500 kilometers from a transmitter, signal reception may not be possible during certain times of year or times of day. Radio interference may also cause problems with reception.

Even when the watch is within the reception range of the transmitter, signal reception is impossible if the signal is blocked by mountains or other geological formations between the watch and signal source.

Signal reception is affected by weather, atmospheric conditions, and seasonal changes.

See the information under “Signal Receive Troubleshooting” if you experience problems with time calibration signal reception.

1

On/off status
DST indicator

Operation Guide COMBIWVGE1

About Auto Receive

When auto receive is turned on, the watch automatically starts to receive the time calibration signal when the digital time in the Timekeeping Mode reaches 0:00 a.m., 1:00 a.m., 2:00 a.m., 3:00 a.m., and 4:00 a.m. each day (calibration times). The watch will also perform an additional auto receive operation at 5:00 a.m. if none of regularly scheduled auto receive operations are successful.

Note

The auto receive operation is performed only if the watch is in the Timekeeping Mode or World Time Mode when one of the calibration times is reached. It is not performed if a calibration time is reached while an alarm is sounding, or while you are configuring settings (while settings are flashing on the display).

Auto receipt of the calibration signal is designed to be performed early in the morning, while you sleep (provided that the Timekeeping Mode time is set correctly). Before going to bed for the night, remove the watch from your wrist, and put it in a location where it can easily receive the signal.

When auto receive is turned on, the watch receives the calibration signal for two to five minutes everyday when the digital time in the Timekeeping Mode reaches each of the calibration times. Do not perform any button operation within five minutes before or after any one of the calibration times. Doing so can interfere with correct calibration.

Remember that reception of the calibration signal depends on the time kept in the digital display. The receive operation will be performed whenever the display shows any one of the calibration times, regardless of whether or not the displayed time is actually the correct time.

When two, three, four, or five receptions are successful, the watch uses the data of the last reception for calibration. When only one reception is successful, the watch uses the data of the successful reception.

About the Receiving Indicator

The receiving indicator shows the strength of the calibration signal being received. For best reception, be sure to keep the watch in a location where signal strength is strongest.

Receiving indicator

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Weak

Strong

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Level 1)

(Level 4)

Even in an area where signal strength is strong, it takes about 10 seconds for signal reception to stabilize enough for the receiving indicator to indicate signal strength.

Use the receiving indicator as a guide for checking signal strength and for finding the best location for the watch during signal receive operations.

The Level 4 receiving indicator remains on the display in all modes following reception of the time calibration signal and calibration of the watch’s time setting. The Level 4 receiving indicator is not displayed if signal reception was unsuccessful or after manual adjustment of the current time setting.

The Level 4 receiving indicator is displayed only when the watch is able to successfully receive both time and date data. It does not appear when only time data is received.

The Level 4 receiving indicator indicates that at least one of the calibration signal receive operations was successful. Note, however, that the Level 4 receiving indicator is cleared from the display at 3:00 a.m. each day.

To perform manual receive

Receiving indicator

1. Place the watch on a stable surface so its top (12

o’clock side) is facing towards a window.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Note that signal reception is poor when the 12 o’clock

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side of the watch is not facing towards a window.

 

 

 

 

 

 

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2. In the Timekeeping Mode, hold down Dfor about two

 

 

 

 

 

 

 

 

 

 

 

seconds until the watch beeps.

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Release D and the current time flashes to indicate that signal reception has started.

Time calibration signal reception takes from two to five minutes. Take care that you do not perform any button operations or move the watch during this time.

After signal reception is complete, the display of the watch changes to the Last Signal screen.

Note

To interrupt a receive operation and return to the Timekeeping Mode, press D.

If the receive operation is unsuccessful, the message ERR appears on the display for about one or two minutes. After that, the watch returns to the Timekeeping Mode.

You can also change from the Last Signal or ERR screen to the normal timekeeping screen by pressing D.

To turn auto receive on and off

1. In the Timekeeping Mode, hold down Auntil the transmitter indicator starts to flash, which indicates the setting screen.

2.Press Cthree times to move the flashing to the auto receive on/off setting.

3.Press Dto toggle auto receive on (ON) and off (OF).

If the current Home City setting is a city code that does not support signal receive, “xx” appears in place of the on/off indicator. This means you cannot turn auto receive on or off.

4.Press Atwice to exit the setting screen.

To display the digital time and Last Signal screen

In the Timekeeping Mode, press Ato cycle through the digital time screens as shown below.

In the Timekeeping Mode, press Dto display the Last Signal screen (indicated by GET). The Last Signal screen shows the date and time of the last successful time calibration signal reception.

Month – Day Hour : Minutes Seconds Month – Day

 

 

 

 

Press A.

A

 

 

Seconds

Day of week

 

A

 

Receive date

Receive time

 

 

Press D.

 

Alternate at two-

 

second interval

 

 

Last Signal Screen

Signal Receive Troubleshooting

Check the following points whenever you experience problems with calibration signal reception.

Problem

Probable Cause

What you should do

Cannot perform

The watch is not in the Timekeeping Mode.

Enter the Timekeeping Mode

manual receive.

Your current Home City is not one of the

and try again.

 

following city codes:

SelectBER,PAR, orLON as

 

BER, PAR, or LON.

your Home City.

 

The transmitter setting is incorrect.

Select the transmitter setting

 

 

appropriate for your current

 

 

location.

Auto receive is

The transmitter setting is incorrect.

Select the transmitter setting

turned on, but

You changed the time setting manually.

appropriate for your current

the Level 4

The watch was not in the Timekeeping

location.

receiving

or World Time Mode, or you performed

Perform manual signal receive

indicator does

some button operation during the auto

or wait until the next auto

not appear on

receive operation.

signal receive operation is

the display.

Even if receive is successful, the Level

performed.

 

4 receiving indicator disappears every

Check to make sure the watch

 

day at 3 am.

is in a location where it can

 

Time data (hour, minutes, seconds)

receive the signal.

 

only was received during the last

 

 

receive operation. The Level 4

 

 

receiving indicator appears only when

 

 

time data and date data (year, month,

 

 

day) are both received.

 

Time setting is

If the time is one hour off, the DST

Change the DST setting to

incorrect

setting may be incorrect.

Auto DST.

following signal

The Home City code setting is not

Select the correct Home City

reception.

correct for the area where you are

code.

 

using the watch.

 

For further information, see “Important!” under “Time Calibration Signal Reception” and “Radio-controlledTimekeeping Precautions”.

World Time

Current time in the

The World Time shows the current time in 30 cities (29

time zones) around the world.

selected city code

If the current time shown for a city is wrong, check your

 

 

 

 

 

 

 

 

 

 

Home City time settings and make the necessary

 

 

 

 

 

changes.

 

 

 

 

 

The watch will perform a signal receive operation even if

 

 

 

 

 

it is in the World Time Mode when a calibration time is

 

 

 

 

 

reached. If this happens, the World Time Mode time

 

 

 

 

 

settings will be adjusted in accordance with the

 

 

 

 

 

Timekeeping Mode’s Home City time.

City Code

All of the operations in this section are performed in the

 

 

 

 

 

World Time Mode, which you enter by pressing C.

To view the time in another city

While in the World Time Mode, press D to scroll through the city codes (time zones).

For full information on city codes, see the “City Code Table”.

To toggle a city code time between Standard Time and Daylight Saving Time

1.In the World Time Mode, use D to display the city code (time zone) whose Standard Time/Daylight Saving Time

setting you want to change.

2. Hold down A to toggle Daylight Saving Time (DST displayed) and Standard Time (DST not displayed).

Note that you cannot use the World Time Mode to change the DST setting of the Home City code you currently have selected in the Timekeeping Mode. See “To change the Daylight Saving Time (summer time) setting” for information about turning the Home City code DST setting on and off.

The DST indicator is on the display whenever you display a city code for which Daylight Saving Time is turned on.

Note that the DST/Standard Time setting affects only the currently displayed city code. Other city codes are not affected.

Alarms

Alarm time (Hour : Minutes)

Alarm name

Hourly Time

Signal Screen

To set an alarm time

The Alarm Mode gives you a choice of four one-timealarms and one snooze alarm. One of theone-timealarms functions as a “target alarm,” which counts the time remaining from the current Home City time to the target alarm time.

Also use the Alarm Mode to turn the Hourly Time Signal on and off.

There are five alarms named AL1,AL2,AL3,TAL (target alarm), and SNZ. You can configure SNZ as a snooze alarm only. AlarmsAL1,AL2,AL3, andTAL can be used asone-timealarms only.

Alarm settings (and Hourly Time Signal settings) are

available in the Alarm Mode, which you enter by pressing C.

1.In the Alarm Mode, use Dto scroll through the alarm screens until the one whose time you want to set is displayed.

 

 

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AL1

AL2

AL3

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SIG SNZTAL

2.After you select an alarm, hold down A until the hour setting of the alarm time starts to flash, which indicates the setting screen.

This operation automatically turns on the alarm.

3.Use C to move the flashing between the hour and minute settings.

4.While a setting is flashing, use D(+) and B(–)to change it.

When setting the alarm time using the 12-hourformat, take care to set the time

correctly as a.m. (no indicator) or p.m. (P indicator).

2

Modules 2734, 2758, 4773, and 4774
Hourly time signal on indicator
Modules 3748 and 3749
Date Alert
Date Alert helps you to remember an important date. After you set an alert date (month and day), a date alert indicator (!) and the current date flash for 24 hours after the alert date arrives in the Timekeeping Mode. You can set up to five different date alerts.
Snooze alarm indicator
Modules 3748 and 3749
To turn the Hourly Time Signal on and off
Hourly time signal on indicator
Alarm on indicator
Snooze alarm indicator
Modules 2734, 2758, 4773, and 4774
Alarm on indicator

Operation Guide COMBIWVGE1

5. Press A to exit the setting screen.

With the target alarm ( TAL), the time starts to countdown as soon as you set the alarm time.

Countdown

Countdown

(Seconds)

(Hours : Minutes)

 

 

2 seconds

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Target Alarm Screen

Alarm Operation

The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the watch is in. In the case of the snooze alarm, the alarm operation is performed a total of seven times, every five minutes, or until you turn the alarm off.

The target alarm counts the time remaining from the current Home City time to the target alarm time. Note that the target alarm repeats automatically each day, as long as it is turned on. You need to turn off the target alarm to disable it.

Pressing any button stops the alarm tone operation.

Performing any one of the following operations during a 5-minuteinterval between snooze alarms cancels the current snooze alarm operation.

Displaying the Timekeeping Mode setting screen Displaying the snooze alarm setting screen

To test the alarm

In the Alarm Mode, hold down Dto sound the alarm.

To turn an alarm on and off

1. In the Alarm Mode, use Dto select an alarm. 2. Press Ato toggle it on and off.

Turning on a one-timealarm (AL1,AL2,AL3,TAL) displays the alarm on indicator on its Alarm Mode screen. Turning on the snooze alarm (SNZ) displays the alarm on indicator and snooze alarm

indicator on its Alarm Mode screen.

In all modes, the alarm on indicator is shown for any alarm that is currently turned on. When the snooze alarm is on, the snooze alarm indicator is displayed in all modes.

The alarm on indicator flashes while the alarm is sounding.

The snooze alarm indicator flashes during the 5-minuteintervals between alarms.

1.In the Alarm Mode, use Dto select the Hourly Time Signal (SIG).

2.Press Ato toggle it on (the Hourly Time Signal on indicator displayed) and off (the Hourly Time Signal on indicator not displayed).

The Hourly Time Signal on indicator is displayed in all modes when the Hourly Time Signal is turned on.

Alert date

Current date

(Month – Day)

(Month – Day)

 

 

 

 

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Date

 

alert

Alert name

 

 

 

 

 

indicator

 

 

 

 

 

 

Date Alert Mode Screen

Timekeeping Mode Screen

To set the alert date

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(Current date does not flash if digital time is displayed on the Timekeeping Mode screen.)

1.Use Cto enter the Date Alert Mode.

2.Use Dto scroll through the alert screens until the one whose date you want to set is displayed.

DA1DA2DA3

DA5 DA4

3.After you select an alert, hold down Auntil the month setting of the alert date

starts to flash, which indicates the setting screen.

This operation automatically turns on the alert.

4.Press C to move the flashing between the month and day settings.

5.While the month or day setting is flashing, use D(+) and B(–)to change it.

6.Press A to exit the setting screen.

To turn an alert on and off

1. In the Date Alert Mode, use Dto select the screen for

 

 

 

 

 

 

 

 

the alert (DA1throughDA5) whose alert type you

 

 

 

 

want to select.

 

 

 

 

2. Press Ato toggle it on and off.

Alert On

Note that the month and day do not appear if the alert is

turned off.

 

Press A.

 

 

 

 

 

 

Alert Off

 

Time Recorder

 

Current time

The Time Recorder Mode lets you store up to 30 time

entries (month, day, hour, minutes) with the touch of a

(Hour : Minutes)

button. One way you can use the Time Recorder Mode is

 

 

 

 

to record the start time and the end time of a particular

 

 

 

 

event.

All of the operations in this section are performed in the Time Recorder Mode, which you enter by pressing C.

Standby Screen

To record a Time Recorder time

1. Use C to enter the Time Recorder Mode.

This displays the Time Recorder standby screen.

2.Press Dto record the current date and time (month, day, hour, minutes).

The recorded time flashes for about two seconds and then assigned the next available record number, in the range of T1 throughT30. Next the time recorder standby screen appears.

A new time is recorded each time you press Dwhile the standby screen is on the display.

Records are assigned numbers sequentially from T1 throughT30.

Storing a new time record when there are already 30 records stored in memory automatically deletes record T1, shifts the remaining records upwards by 1, and stores the new record asT30.

To recall Time Recorder times

1.In the Time Recorder Mode, press Ato recall Time Recorder times.

If there are no time recorder times currently in memory, the standby screen remains on the display when you press A.

2.Use D to scroll through times stored in memory.

Recorded time

Recorded date (Month – Day)

(Hour : Minutes)

 

Alternate at two-secondinterval

Time record number

Each press of Dscrolls through time records from higher numbered (newer) records to lower numbered records.

If you recorded a new Time Recorder time since you last entered the Time Recorder Mode, the newest record appears first. If you have not recorded a new time, the record you were viewing when you last exited the Time Recorder Mode appears first.

Press Ato return to the standby screen.

To delete all Time Recorder times

Enter the Time Recorder Mode. While holding down A, press Dto delete all Time Recorder times.

Stopwatch

Minutes Seconds

1/100 second

The stopwatch lets you measure elapsed time, split times, and two finishes.

The display range of the stopwatch is 59 minutes, 59.99 seconds.

The stopwatch continues to run, restarting from zero after it reaches its limit, until you stop it.

Exiting the Stopwatch Mode while a split time is frozen on the display clears the split time and returns to elapsed time measurement.

The stopwatch measurement operation continues even if you exit the Stopwatch Mode.

All of the operations in this section are performed in the Stopwatch Mode, which you enter by pressing C.

To measure times with the stopwatch

 

 

Elapsed Time

 

 

 

 

D

D

D

D

A

Start

Stop

Re-start

Stop

Clear

Split Time

 

 

 

 

D

A

A

D

A

Start

Split

Split release

Stop

Clear

Two Finishes

 

 

 

 

D

A

D

A

A

Start

Split

Stop

Split release

Clear

 

First runner

Second runner

Display time of

 

 

finishes.

finishes.

second runner.

 

 

Display time of

 

 

 

 

first runner.

 

 

 

3

Operation Guide COMBIWVGE1

Timekeeping

Use the Timekeeping Mode to set and view the current time and date. This section also explains how to manually set the current date and time.

All of the operations in this section are performed in the Timekeeping Mode, which you can enter by pressing C.

Month – Day

Hour: Minutes

Seconds

Month – Day

 

Press A.

 

A

 

 

 

A

Seconds

 

 

Day of week

 

 

 

 

 

Press D.

 

 

 

 

 

 

Last Signal Screen

 

 

Setting the Digital Time and Date Manually

Make sure you select your Home City code before you change the current time and date settings. World Time Mode times are all displayed in accordance with the Timekeeping Mode settings. Because of this, World Time Mode times will not be correct if you do not select the proper Home City code before setting the time and date in the Timekeeping Mode.

To set the current digital time and date manually

1.In the Timekeeping Mode, hold down Auntil the transmitter indicator starts to flash, which indicates the setting screen.

2.Use Aor C to move the flashing in the sequence shown below to select other settings.

 

 

Press C.

/ Press A.

 

Transmitter/

 

C

 

 

Auto

Transmitter

City Code

DST

City Settings

Receive

 

 

 

 

 

A

 

 

 

 

 

12/24-Hour

C

 

Hour

Minutes

Time/Date

Format

Seconds

 

 

 

 

Settings

Day

 

Month

 

Year

 

 

 

3.When the setting you want to change is flashing, use B and/or Dto change it as described below.

Transmitter/City Settings

Screen:

To do this:

Do this:

 

 

 

Change the transmitter setting (A/T,

Use D.

 

 

 

MSF, or DCF)

 

 

 

 

Change the city code

Use D(east) and B(west).

 

 

 

 

 

DST

Toggle between Daylight Saving

Press D.

 

 

 

Time (ON) , Standard Time (OFF),

 

 

 

 

or Auto DST (A)

 

 

 

 

Toggle between auto receive on

Press D.

 

 

 

(ON) and off (OF)

 

See “City Code Table” for a complete list of available city codes.

Time/Date Settings

Screen:

To do this:

Do this:

 

 

 

Toggle between 12-hour(12H) and

Press D.

 

 

 

24-hour(24H) timekeeping

 

 

 

 

Reset the seconds to 00

Press D.

 

 

 

Change the hour or minutes

Use D(+) and B(–).

 

 

 

Change the month, day, or year

Use D(+) and B(–).

 

 

 

 

 

4. Use A to exit the setting screen.

If a Transmitter/City Setting screen is displayed, press A twice.

If a Time/Date Setting screen is displayed, press Aonce.

When you exit the setting screen, the analog hands are adjusted automatically to match the digital time. See “Analog Timekeeping” for more information.

Note

See “Transmitters” for more information.

Auto DST (A) can be selected only whileBER,PAR,LON, orATH is selected as the Home City code. For more information, see “Daylight Saving Time (DST)” below.

The auto receive setting is used for time calibration signal reception only. See “About Auto Receive” for details.

Daylight Saving Time (DST)

Daylight Saving Time (summer time) advances the time setting by one hour from Standard Time. Remember that not all countries or even local areas use Daylight Saving Time.

The time calibration signals transmitted from Rugby and Mainflingen include both Standard Time and DST data. When the Auto DST setting is turned on, the watch switches between Standard Time and DST (summer time) automatically in accordance with the received time signal.

The default DST setting is Auto DST (A) whenever you selectBER,PAR,LON, orATH as your Home City code.

If you experience problems receiving the time calibration signal in your area, it is probably best to switch between Standard Time and Daylight Saving Time (summer time) manually.

To change the Daylight Saving Time (summer time) setting

1.In the Timekeeping Mode, hold down Auntil transmitter indicator starts to flash, which indicates the setting screen.

2.Press Ctwice and the DST setting screen appears.

3.Use D to cycle through the DST settings in the sequence shown below.

Auto DST (A)

 

 

DST off (OFF)

 

 

DST on (ON)

 

 

 

 

 

 

 

 

 

 

 

4. When the setting you want is selected, press Atwice to exit the setting screen.

Analog Timekeeping

The analog time of this watch is synchronized with the digital time. The analog time setting is adjusted automatically whenever you change the digital time.

Note

The hands for the analog timepiece move to adjust to a new setting whenever any of the following occurs.

When you change the digital time setting manually

When the digital time setting is changed by time calibration signal reception When you change the Home City code and/or DST setting

If the analog time does not match the digital time for any reason, use the procedure described under “To adjust the analog time” to match the analog setting to the digital setting.

Whenever you need to adjust both the digital and the analog time settings manually, make sure you adjust the digital setting first.

Depending on how much the hands have to move in order to adjust to the digital time, it may take some time before the analog hands stop moving.

To adjust the analog time

1.In the Timekeeping Mode, press Csix times to enter the Hand Setting Mode.

2.Hold down Auntil the current digital time starts to flash, which indicates the setting screen.

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3. Use D(+) and B(–)to adjust the analog setting as

 

 

 

 

 

 

described below.

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Current time

 

 

 

 

 

 

When you want to do this:

 

Perform this button operation:

Move the hand setting

 

 

Press D.

forward 20 seconds

 

 

 

Move the hand setting back

 

Press B.

20 seconds

 

 

 

 

 

 

Move the hand setting a short

 

Hold down D.

way forward at high speed

 

 

Release D when the hands reach the setting

 

 

 

 

 

 

 

 

 

 

 

you want.

Move the hand setting a

 

 

Hold down B.

short way back at high speed

Release B when the hands reach the setting

 

 

 

 

 

 

 

 

 

 

 

you want.

Move the hand setting a

 

 

While holding down D to move the hands at

long way forward at high

 

 

high-speed,press Bto lock thehigh-speed

speed

 

 

 

 

 

 

 

 

 

hand movement.

 

 

 

 

 

 

 

 

 

 

 

Press any button when the hands are close to

 

 

 

 

 

 

 

 

 

 

 

the setting you want.

 

 

 

 

 

 

 

 

 

 

 

Hand movement stops automatically if the hour

 

 

 

 

 

 

 

 

 

 

 

hand makes one full (12-hour)revolution.

Move the hand setting a long

While holding down B to move the hands at

way back at high speed

 

 

high-speed,press Dto lock thehigh-speed

 

 

 

 

 

 

 

 

 

 

 

hand movement.

 

 

 

 

 

 

 

 

 

 

 

Press any button when the hands are close to

 

 

 

 

 

 

 

 

 

 

 

the setting you want.

 

 

 

 

 

 

 

 

 

 

 

Hand movement stops automatically if the hour

 

 

 

 

 

 

 

 

 

 

 

hand makes one full (12-hour)revolution.

4. Press Ato exit the setting screen.

The minute hand will be adjusted slightly to match the seconds when you exit the setting screen.

To return to the Timekeeping Mode, press C.

Reference

This section contains more detailed and technical information about watch operation. It also contains important precautions and notes about the various features and functions of this watch.

Auto return features

If you leave the watch in the Alarm (except for the target alarm screen explained on “To set an alarm time”), Date Alert, or Hand Setting Mode for two or three minutes without performing any operation, it automatically changes to the Timekeeping Mode.

If you leave the watch with a flashing setting or cursor on the display for two or three minutes without performing any operation, it automatically saves any settings you have made up to that point and exits the setting screen.

Scrolling

The Band D buttons are used in various modes and setting screens to scroll through data on the display. In most cases, holding down these buttons during a scroll operation scrolls through the data at high speed.

Initial Screens

When you enter the World Time, Alarm, or Date Alert Mode, the data you were viewing when you last exited the mode appears first.

Radio-controlledTimekeeping Precautions

Strong electrostatic charge can result in the wrong time being set.

The time calibration signal is bounced off the ionosphere. Because of this, such factors as changes in the reflectivity of the ionosphere, as well as movement of the ionosphere to higher altitudes due to seasonal atmospheric changes or the time of day may change the reception range of the signal and make reception temporarily impossible.

Even if the time calibration signal is received properly, certain conditions can cause the time setting to be off by up to one second.

The current time setting in accordance with the time calibration signal takes priority over any time settings you make.

The watch is designed to automatically update the date and day of the week for the period January 1, 2000 to December 31, 2039. Setting of the date by the time calibration signal cannot be performed starting from January 1, 2040.

This watch can receive signals that differentiate between leap years and non-leapyears.

Though this watch is designed to receive both time data (hour, minutes, seconds) and date data (year, month, day), certain signal conditions can limit reception to time

data only.

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