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Operation Guide 5263
About This Manual
Button operations are indicated using the letters A
through D shown in the illustration.
Hand Functions
Hour Hand
Second Hand
E-2
2. Check the Home City and the daylight saving time (DST) setting.
Use the procedure under “To confi gure Home City settings” (page E-34) to confi gure
your Home City and daylight saving time settings.
Important!
Proper time calibration signal reception and World Time settings depend on correct
Home City, time, and date settings in the Timekeeping Mode. Make sure you
confi gure these settings correctly.
3. Set the current time.
x To set the time using a time calibration signal
See “To get ready for a receive operation” (page E-23).
x To set the time manually
See “Confi
guring Current Time and Date Settings Manually” (page E-38).
Minute Hand
Left Dial Hand: Indicates the current mode.
Lower Dial Hand
Right Dial Hands
Day Indicator
This User’s Guide uses numbers shown above to identify
watch hands and indicators.
Congratulations upon your selection of this CASIO watch.
This watch does not have a city code that corresponds to the UTC offset of –3.5
hours. Because of this, the radio-controlled atomic timekeeping function will not
display the correct time for Newfoundland, Canada.
Note that CASIO COMPUTER CO., LTD. assumes no responsibility for any damage
or loss suffered by you or any third party arising through the use of this product or
its malfunction.
Things to check before using the watch
ENGLISH
1. Hold down C at least two seconds to enter the Timekeeping Mode, and then
observe the movement of the
Is the x Second Hand moving smoothly at one-second intervals?
Is the x Second Hand moving at
two-second intervals or is it stopped
completely?
Power is low. Charge the watch by placing
it in a location where it is exposed to light.
For details, see “Charging the Watch”
(page E-10).
The watch is now ready for use.
For details about the watch’s radio controlled timekeeping feature, see “Radio x
Controlled Atomic Timekeeping” (page E-18).
NO
YES
Second Hand.
The watch is charged suffi ciently.
For details about charging, see
“Charging the Watch” (page E-10).
Go to step 2.
YES
NEXT
E-1
E-3
E-4
Contents
E-2 About This Manual
E-3 Things to check before using the watch
E-10 Charging the Watch
E-17 To recover from the sleep state
E-18 Radio Controlled Atomic Timekeeping
E-23 To get ready for a receive operation
E-26 To perform manual receive
E-28 To check the result of the latest receive operation
E-30 Mode Reference Guide
E-31 To determine the watch’s current mode
E-31 To return to the Timekeeping Mode from any other mode
E-32 To select a mode
E-6
E-47 Using the Countdown Timer
E-48 To specify the countdown start time
E-49 To perform a countdown timer operation
E-50 To stop the alarm
E-51 Checking the Current Time in a Different Time Zone
E-52 To view the time in another time zone
E-53 To specify standard time or daylight saving time (DST) for a city
E-55 To swap your Home City and World Time City
E-57 Using the Alarm
E-58 To change the alarm time setting
E-58 To turn the alarm on or off
E-58 To stop the alarm
E-59 Auto Correction of Hand Home Positions
E-8
E-60 To trigger auto correction of hand home positions
E-33 Timekeeping
E-34 Confi guring Home City Settings
E-34 To confi gure Home City settings
E-36 To toggle the Home City time between standard time and daylight
E-38 Confi guring Current Time and Date Settings Manually
E-44 Using the Stopwatch
E-62 Adjusting Home Positions Manually
E-67 Troubleshooting
E-76 Specifications
saving time
E-38 To change the current time setting manually
E-41 To change the current date setting manually
E-45 To perform elapsed time measurement
E-45 To perform an elapsed time operation
E-45 To pause at a split time
E-63 To adjust home positions manually
E-5
E-7
E-9
Operation Guide 5263
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x
x
x
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Charging the Watch
The face of the watch is a solar panel that generates power from light. The generated
power charges a built-in rechargeable battery, which powers watch operations. The
watch charges whenever it is exposed to light.
Charging Guide
E-10
Power Levels
Moves at two-second
intervals.
E-12
Power Recovery Mode
The watch is designed to go into a power recovery mode that stops hand operation
temporarily whenever power suddenly drops below a certain level due to overuse
of the alarm tone over a short period. Note that all operations are disabled while the
watch is in the power recovery mode.
The hands will move to the correct positions and the watch will resume normal
operation after power recovers (in about 15 minutes). Putting the watch in a location
where it is exposed to light will help power to recover sooner.
E-14
Whenever you are not
wearing the watch, be sure
to leave it in a location
where it is exposed to light.
Best charging x
performance is achieved
by exposing the watch to
light that is as strong as
possible.
You can get an idea of the watch’s power level by
observing the movement of the
Timekeeping Mode. See “Hand Movement and Function
Status” (page E-13).
Second Hand is moving normally at one-second
If the
intervals, power is at Level 1.
Low Battery Alert
Second Hand is moving at two-second intervals,
If the
power is at Level 2, which is quite low. Expose the watch to
light as soon as possible so it can charge.
When wearing the watch,
make sure that its face is
not blocked from light by the
sleeve of your clothing.
The watch may enter a x
sleep state (page E-16) if
its face is blocked by your
sleeve even only partially.
Second Hand in the
Warning!
Leaving the watch in bright light for charging can cause it to become quite hot.
Take care when handling the watch to avoid burn injury. The watch can become
particularly hot when exposed to the following conditions for long periods.
On the dashboard of a car parked in direct sunlight x
Too close to an incandescent lamp x
Under direct sunlight x
Important!
Keep the watch in an area normally exposed to bright light when storing it for long x
periods. This helps to ensure that power does not run down.
Storing the watch for long periods in an area where there is no light or wearing it in x
such a way that it is blocked from exposure to light can cause power to run down.
Make sure that the watch is exposed to bright light whenever possible.
E-11
Hand Movement and Function Status
Level Hand Movement Function Status
1 Normal. All functions enabled.
xx Second Hand moving at two-second
2
intervals.
mm Day Indicator changes to 1 (home position).
Second Hand stopped.
x
3
zz Hour Hand and cc Minute Hand stopped
at 12 o’clock.
When power drops to Level 3, all functions will be disabled but the watch will x
continue to keep time internally for about one week. If you recharge the battery
ciently during this period, the analog hands will move automatically to the
suffi
correct setting and regular timekeeping will resume. After one week, all settings
(including timekeeping) will be cleared. Recharging the battery will reset all settings
to their initial factory defaults.
Beeper, time calibration signal
reception, and countdown timer
operation disabled.
All functions disabled.
E-13
Charging Times
Exposure Level (Brightness)
Outdoor sunlight (50,000 lux) 8 minutes 2 hours 23 hours
Window sunlight (10,000 lux) 30 minutes 6 hours 85 hours
Window sunlight on cloudy day
(5,000 lux)
Indoor fl uorescent lighting (500 lux) 8 hours 92 hours – – –
1 Approximate exposure each day to generate power for normal daily operation. *
2 Approximate amount exposure time required to take power up one level. *
The above exposure times all are for reference only. Actual exposure times depend x
on lighting conditions.
For details about the operating time and daily operating conditions, see the “Power x
Supply” section of the Specifi cations (page E-77).
Daily
Operation
*1
48 minutes 8 hours 138 hours
Level Change *2
Level 3 Level 2 Level 1
E-15
Power Saving
Power Saving enters a sleep state automatically whenever the watch is left for a
certain period in an area where it is dark. The table below shows how watch functions
are affected by Power Saving.
There actually are two sleep state levels: “second hand sleep” and “function sleep”. x
Elapsed Time in Dark Operation
60 to 70 minutes (second hand
sleep)
6 or 7 days (function sleep)
The watch will not enter a sleep state between 6:00 a.m. and 9:59 p.m. If the watch x
is already in a sleep state when 6:00 a.m. arrives, however, it will remain in the
sleep state.
The watch will not enter a sleep state while it is in the Stopwatch Mode or x
Countdown Timer Mode.
E-16
Second Hand only stopped at 12 o’clock, all other
x
functions enabled
All functions, including analog timekeeping, disabled x
Internal timekeeping maintained x
Radio Controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly.
However, when using the watch outside of areas covered by time calibration signals,
you will have to adjust the settings manually as required. See “Confi guring Current
Time and Date Settings Manually” (page E-38) for more information.
This section explains how the watch updates its time settings when the city code
selected as the Home City is in Japan, North America, Europe, or China, and is one
that supports time calibration signal reception.
E-18
To recover from the sleep state
Move the watch to a well-lit area or press any button.
If your Home City Code setting is this:
LONDON (LON), PARIS (PAR), ATHENS (ATH) Anthorn (England), Mainfl ingen (Germany)
HONG KONG (HKG) Shangqiu City (China)
TOKYO (TYO) Fukushima (Japan), Fukuoka/Saga (Japan)
HONOLULU (HNL), ANCHORAGE (ANC),
LOS ANGELES (LAX), DENVER (DEN),
CHICAGO (CHI), NEW YORK (NYC)
Important!
The areas covered by x HONOLULU (HNL) and ANCHORAGE (ANC) are quite far
from the calibration signal transmitters, so certain conditions may cause reception
problems.
When x HONOLULU (HNL) or HONG KONG (HKG) is selected as the Home City,
only the time and date are adjusted according to the time calibration signal. You
need to switch manually between standard time and daylight saving time (DST) if
required. See “To toggle the Home City time between standard time and daylight
saving time” (page E-36) for information about how to do this.
The watch can receive the signal from
the transmitter located here:
Fort Collins, Colorado (United States)
E-17
E-19
Operation Guide 5263
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Approximate Reception Ranges
UK and German Signals North American Signal
Anthorn
500 kilometers
1,500 kilometers
The Anthorn signal is receivable
within this area.
Mainfl ingen
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
Japanese Signals Chinese Signal
Fukushima
500 kilometers
Fukuoka/Saga
1,000 kilometers
Changchun500 kilometers
1,500 kilometers
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
E-20
Signal reception may not be possible at the distances noted below during certain x
times of the year or day. Radio interference may also cause problems with
reception.
ingen (Germany) or Anthorn (England) transmitters: 500 kilometers −
Mainfl
(310 miles)
Fort Collins (United States) transmitter: 600 miles (1,000 kilometers) −
Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles) −
Shangqiu (China) transmitter: 500 kilometers (310 miles) −
As of December 2010, China does not use Daylight Saving Time (DST). If China x
does go to the Daylight Saving Time system in the future, some functions of this
watch may no longer operate correctly.
Using this watch in a country covered by a time calibration that is different from the x
countries it supports may result in incorrect time indication due to local application
of summer time, etc.
E-22
Signal reception may be diffi cult or even impossible under the conditions x
described below.
Inside or
among
buildings
E-24
Inside a
vehicle
Near
household
appliances,
offi ce
equipment,
or a mobile
phone
Near a
construction
site, airport,
or other
sources of
electrical
noise
Near
high-tension
power lines
Among
or behind
mountains
To get ready for a receive operation
Confi rm that the watch is in the Timekeeping Mode. If it isn’t, hold down 1. C at least
two seconds to enter the Timekeeping Mode.
Place the watch in a location where signal reception is good.2.
12 o’clock
or
What you should do next depends on whether you are using Auto Receive or 3.
Manual Receive.
Auto Receive: Leave the watch over night in the location you selected in step 2. x
See “Auto Receive” on page E-25 for details.
Manual Receive: Perform the operation under “To perform manual receive” on x
page E-26.
Auto Receive
With Auto Receive, the watch performs the receive operation each day x
automatically up to six times (up to fi ve times for the Chinese calibration signal)
between the hours of midnight and 5 a.m. (according to the Timekeeping Mode
time). When any receive operation is successful, none of the other receive
operations for that day are performed.
When a calibration time is reached, the watch will perform the receive operation x
only if it is in the Timekeeping Mode or World Time Mode. The receive operation is
not performed if a calibration time is reached while you are confi
Position the watch as shown in the x
nearby illustration, with 12 o’clock
pointed towards a window. Make sure
there are no metal objects nearby.
Signal reception normally is better x
at night.
The receive operation takes from two x
to seven minutes, but in some cases
it can take as long as 14 minutes.
Take care that you do not perform
any button operation or move the
watch during this time.
guring settings.
E-21
E-23
E-25
To perform manual receive
In the Timekeeping Mode, keep 1. A depressed (for about two seconds) as the
Second Hand goes through the following sequence.
Moves to x YES (or Y for some models) or NO (N) to indicate the last signal
reception result, then to READY (R).
The 2.
Second Hand indicates the operations the watch is currently performing.
When the xx Second
Hand is pointed here:
READY (R) Watch is setting up for reception.
WORK (W) Reception is in progress.
YES (Y)
NO (N) Reception failed for some reason.
If signal reception is unstable, the x xx Second Hand
may move between WORK (W) and READY (R).
E-26
To check the result of the latest receive operation
In the Timekeeping Mode, press A.
The x
Second Hand will move to YES (Y) for fi ve
seconds if the latest receive operation was successful,
or NO (N) if it was not. After that, regular timekeeping
will resume.
You can return to the Timekeeping Mode manually by x
pressing A while the
(Y) or NO (N).
Note
Second Hand will indicate NO (N) if you have
The x
adjusted the time or date setting manually since the
latest receive operation.
It means this:
Reception was completed
successfully.
Second Hand is pointing to YES
Radio-controlled Atomic Timekeeping Precautions
Strong electrostatic charge can result in the wrong time setting. x
Even if a receive operation is successful, certain conditions can cause the time x
setting to be off by up to one second.
The watch is designed to update the date and day of the week automatically for x
the period January 1, 2000 to December 31, 2099. Updating of the date by signal
reception will no longer be performed starting from January 1, 2100.
If you are in an area where signal reception is not possible, the watch keeps time x
with the precision noted in “Specifi cations” (page E-76).
The receive operation is disabled under any of the following conditions. x
While power is at Level 2 or lower (page E-12) −
While the watch is in the power recovery mode (page E-14) −
When the watch is in the function sleep state (power saving, page E-16) −
While a countdown time operation is in progress (page E-47) −
A receive operation is cancelled if an alarm sounds while it is being performed. x
The receive operation is complete when the 3.
Hand moves to YES (Y) or NO (N) for about fi ve
seconds, and then resumes regular timekeeping.
You can return to the Timekeeping Mode manually by x
pressing A while the
YES (Y) or NO (N).
When the receive operation is successful, the watch x
adjusts the time setting accordingly. It does not adjust
the setting if the operation failed.
Note
To interrupt a receive operation and return to the x
Timekeeping Mode, press any button.
Second Hand is pointing to
Second
E-27
E-28
E-29
Operation Guide 5263
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Mode Reference Guide
Your watch has fi ve “modes”. The mode you should select depends on what you want
to do.
To do this: Enter this mode: See:
View the current time in your Home City and in one x
of 29 other cities around the globe
View the current date in the Home City x
Confi gure Home City and daylight saving time x
(DST) settings
Perform a time calibration receive operation x
Confi gure time and date settings manually x
Use the stopwatch to measure elapsed time
Use the countdown timer Countdown Timer Mode E-47
View the current time in one of 29 cities (time zones)
around the globe
Set an alarm time Alarm Mode E-57
E-30
To select a mode
Press C to cycle between the modes as shown below. The
indicates the currently selected mode.
Timekeeping Mode Stopwatch Mode
The hand indicates
the day of the week
(SU, MO, TU, WE, TH,
FR, SA).
C
Alarm Mode
The hand points to AL.
E-32 C
C
C
Timekeeping Mode E-33
Stopwatch Mode E-44
World Time Mode E-51
Left Dial Hand
Hand points to 12 o’clock.
Countdown Timer Mode
The hand points to TR.
World Time Mode
The hand points to STD
or DST.
Confi guring Home City Settings
There are two Home City settings: actually selecting the Home City and selecting
either standard time or daylight saving time (DST).
To confi gure Home City settings
Note
This watch does not have a city code that corresponds x
to Newfoundland.
E-34
In the Timekeeping Mode, keep 1. A depressed (for about
ve seconds) as the
fi
following sequence.
Moves to x YES (or Y for some models) or NO (N)
to indicate the last signal reception result, then to
READY (R), and then to the city code of the currently
selected Home City.
This indicates the city code setting mode. x
Second Hand goes through the
Selecting a Mode
With this watch, everything starts from the Timekeeping Mode.
To determine the watch’s current mode
Check the position of the
under “To select a mode” (page E-32).
To return to the Timekeeping Mode from any other
mode
Hold down C for about two seconds until the watch beeps
twice.
Left Dial Hand as shown
E-31
Timekeeping
Use the Timekeeping Mode to view the current time and date. To enter the
Timekeeping Mode from any other mode, hold down C at least two seconds.
Hand Functions
C
C
Press 3. B to toggle the time for the currently selected city code between STD
(standard time)/DST (daylight saving time).
Hour Hand
Second Hand
Minute Hand
Left Dial Hand: Indicates the day of the week.
Lower Dial Hand: Indicates the current hour in the
Right Dial Hands:
Indicate the current time in the World Time City (page
E-51) in 24-hour format.
Day Indicator
The watch will exit the setting mode automatically if x
you do not perform any operation for about two or
three minutes.
For details about city codes, see the “City Code x
Table” at the back of this manual.
To change the Home City setting, press 2. D to move the
Second Hand clockwise.
Keep pressing x D until the x Second Hand is pointing
at the city code you want to select as your Home City.
Each time you select a city code, the x
Minute Hand, b Lower Dial Hand and m Day
Indicator move to the current time and date for that
city code. Do not perform the next operation until
these hands stop moving.
Home City time in 24-hour format.
E-33
Hour Hand,
E-35
In the city code setting mode, the x
saving time setting as STD (standard time) or DST (daylight saving time).
Note that you cannot switch between x STD (standard time)/DST (daylight saving
time) while UTC is selected as your Home City.
After all the settings are the way you want, press 4. A to return to the Timekeeping
Mode.
To toggle the Home City time between standard time and daylight saving time
Perform the step 1 under “To confi
Each time you select a city code, the x
Lower Dial Hand move to the current time for that city code. Do not perform
the next operation until these hands stop moving.
Press 2. B to toggle the time for the city code of the currently selected Home City
between STD (standard time)/DST (daylight saving time).
In the city code setting mode, the x
saving time setting as STD (standard time) or DST (daylight saving time).
E-36
Left Dial Hand indicates the current daylight
gure Home City settings” on page E-34.1.
Hour Hand, c Minute Hand, and
Left Dial Hand indicates the current daylight
Confi guring Current Time and Date Settings Manually
You can confi gure current time and date settings manually when the watch is unable
to receive a time calibration signal.
To change the current time setting manually
E-38
In the Timekeeping Mode, keep 1. A depressed (for about
fi ve seconds) as the
following sequence.
Moves to x YES (or Y for some models) or NO (N)
to indicate the last signal reception result, then to
READY (R), and then to the city code of the currently
selected Home City.
At this time, the x
Home City’s current daylight saving time setting (STD
or DST).
Second Hand goes through the
Left Dial Hand will indicate the
Note that you cannot switch between x STD (standard time)/DST (daylight saving
time) while UTC is selected as your Home City.
After the setting is the way you want, press 3. A to return to the Timekeeping Mode.
Note
After you specify a city code, the watch will use UTC* offsets in the World Time x
Mode to calculate the current time for other time zones based on the current time
in your Home City.
Selecting some city codes makes it possible for the watch to receive the time x
calibration signal for the corresponding area automatically. See page E-18 for
details.
Coordinated Universal Time, the world-wide scientifi
reference point for UTC is Greenwich, England.
Change the Home City and daylight saving time (DST) 2.
settings, if you want.
For details about these settings, see steps 2 and 3 x
under “To confi gure Home City settings” (page E-34).
In the following steps, each press of x C cycles
between settings as shown below.
Home city/DST Hour/Minute Year
c standard of timekeeping. The *
CC
C
Day Month
C
Press 3. C.
The watch will beep, and the x
their 12 o’clock positions. This is the time setting mode.
Second Hand and v Left Dial Hand will move to
E-37
C
E-39
Operation Guide 5263
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Use 4. D (+) and B (–) to change the time (hour and minute) setting.
Each press of either button will move the hands ( x
Hand) one minute.
Holding down x D or B will start high-speed
movement in the applicable direction. To stop high-speed hand movement,
press any button.
Lower Dial Hand and z Hour Hand move in sync with each other.
The x
When setting the time, make sure that the x
proper a.m./p.m. hour.
If you want to change the date setting at this time, press x C and perform the
procedure starting from step 3 under “To change the current date setting
manually” (page E-41).
After the time setting is the way you want, press 5. A to return to the Timekeeping
Mode.
This will cause the x
resume movement from there.
E-40
01
9
8
Nov
Oct
Sep
Aug
Jul
Setting the month
657
Dec
Jun
Setting the year (ones digit)
E-42
Second Hand to move automatically to 12 o’clock and
Each press of x D will move the x Second Hand and
2
change the ones digit of the year setting.
After the year setting is the way you want, press 4. C.
3
The watch will beep and change to the month setting x
mode.
4
Jan
Use 5. D to move the
Feb
setting you want.
Mar
After the month setting is the way you want, press 6. C.
The watch will beep and change to the day setting x
mode.
Apr
May
Hour Hand and c Minute
Hour Hand and c Minute Hand
Lower Dial Hand indicates the
Second Hand to the month
Using the Stopwatch
The stopwatch measures elapsed time and split times.
Hand Functions
Second Hand: Indicates the stopwatch seconds count.
Left Dial Hand: Indicates the stopwatch 1/20-second
Right Dial Hands: Indicate the stopwatch hours and
count.
minutes.
To change the current date setting manually
00
10
90
80
70
40
60
50
Setting the year (tens digit)
Note
The watch’s built-in full automatic calendar makes allowances for different month x
lengths and leap years. Once you set the date, there should be no reason to
change it except after you have the watch’s rechargeable battery replaced or after
power drops to Level 3.
To perform elapsed time measurement
1. Use C to move the
In the Timekeeping Mode, keep 1. A depressed (for
about fi ve seconds) as the
through the following sequence.
Moves to x YES (or Y for some models) or NO (N)
to indicate the last signal reception result, then to
20
READY (R), and then to the city code of the currently
30
selected Home City.
Press 2. C twice.
The watch will beep and change to the year setting x
mode.
The year can be set in the range of 2000 to 2099. x
Use 3. D and B to change the year setting.
Each press of x B will move the
change the tens digit of the year setting.
Use 7. D (+) and B (–) to change the m Day Indicator
setting.
If you want to change the time setting at this time, x
press C and then perform the procedure starting
from step 3 under “To change the current time setting
manually” (page E-38).
After the settings are the way you want, press 8. A to
return to the Timekeeping Mode.
This will cause the x
automatically to 12 o’clock and resume movement
from there.
The day of the week indicated by the x
Hand changes automatically in accordance with the
date (year, month, and day).
Second Hand goes
Second Hand to move
Left Dial Hand to 12 o’clock.
Left Dial Hand and
Left Dial
2. Now you can perform either of following stopwatch operations.
To perform an elapsed time operation
B
Start Stop (Restart) (Stop) Reset
B B B D
To pause at a split time
D
B
Start Split Stop Reset
Normal stopwatch hand movement will
resume automatically after fi ve seconds.
B D
E-41
E-43
E-44
Note
The Stopwatch Mode can indicate elapsed time up to 23 hours, 59 minutes, 59.95 x
seconds.
x D button operation (split, reset) is disabled while hands are moving at high speed
following a reset operation and when transitioning from a split time back to normal
elapsed timekeeping.
Once started, stopwatch timing continues until you press x B to stop it, even if you
exit the Stopwatch Mode to another mode and even if timing reaches the stopwatch
limit defi ned above.
You can press x B to start an elapsed time operation immediately after entering the
Stopwatch Mode, even if the watch’s hands are still moving to their initial Stopwatch
Mode positions. Note, however, that if the stopwatch was not reset after the last
elapsed time operation, timing will restart from where it was last stopped, and not
from 0.
Left Dial Hand indicates the 1/20-second count for the fi rst 30 seconds of
The x
a stopwatch elapsed time operation. After that, the hand stops at 0. 1/20-second
timing continues internally after the fi rst 30 seconds, and the
move to the current value whenever B (Stop) or D (Split) is pressed.
E-46
To specify the countdown start time
Use 1. C to move the
After confi rming that the 2.
ongoing countdown timer operation), press D.
Second Hand is moving, press B to stop it and then press D.
If the x
Use 3. D (+) and A (–) to specify the countdown start time.
Each press of either button will move the x
Holding down x D or A will start high-speed hand movement in the applicable
direction. To stop high-speed hand movement, press any button.
The maximum countdown start time setting is 24 hours. To set a countdown start x
time of 24 hours, move the
E-48
Left Dial Hand to TR.
Second Hand is stopped (which indicates there is no
Right Dial Hands one minute.
Right Dial Hands to 24.
Left Dial Hand will
Using the Countdown Timer
The countdown timer can be confi gured to start automatically at a preset time, and
sound an alarm when the end of the countdown is reached.
Hand Functions
Second Hand:
Moves counter-clockwise to countdown the seconds.
Automatically switches to clockwise movement after
the end of the countdown is reached to count up the
To perform a countdown timer operation
B
Start Stop (Restart) (Stop) Reset
Before starting a countdown timer operation, check to make sure that the x
countdown timer is not already operating (indicated by a moving
If it is, press B to stop it and then D to reset to the countdown start time.
An alarm sounds for 10 seconds when the end of the countdown is reached. This x
alarm will sound in all modes.
While a countdown operation is in progress, the x
Dial Hands move counterclockwise. When the end of a countdown is reached,
the
clockwise to measure elapsed time after the end of the countdown. The elapsed
time operation continues until you press B to stop it.
The maximum time measured by the elapsed time operation that starts after a x
countdown is complete is 23 hours, 59 minutes, 59 seconds.
B B B D
Second Hand and n Right Dial Hands change direction and start moving
seconds of the elapsed time operation.
Left Dial Hand: Points to TR.
Right Dial Hands:
Move counter-clockwise to countdown the hours and
minutes. Automatically switch to clockwise movement
after the end of the countdown is reached to count up
the hours and minutes of the elapsed time operation.
Second Hand and n Right
E-45C
E-47
Second Hand).
E-49
Operation Guide 5263
z
x
v
n
x
v
n
@
> 6
x
n
@
6
x
n
@
6
n
6>
v
x
n
z
x
v
n
>@6
To stop the alarm
Press any button.
Note
Pressing any button while the alarm is sounding simply stops the alarm sound. x
It does not stop the elapsed time operation that started when the end of the
countdown was reached. To stop the elapsed time operation, press B.
E-50
To view the time in another time zone
Use 1. C to move the
The xx Second Hand will move to the city code of the currently selected World
Time City.
Use 2. D to move the
World Time City.
Right Dial Hands will move to the current time in the time zone of the
The x
current city code. At this time, the
continue to indicate the current time in the Home City.
For full information on city codes, see the “City Code Table” at the back of this x
manual.
If you think that the time indicated for the selected time zone is not correct, it x
probably means that there is something wrong with your Home City settings. Use
the procedure under “To confi
the Home City settings.
E-52
Swapping your Home City and World Time City
You can use the procedure below to swap your Home City and World Time City. This
capability can come in handy when you frequently travel between two locations in
different time zones.
The following example shows what happens when the Home City and World Time
City are swapped while the Home City originally is TOKYO (TYO) and the World Time
City is NEW YORK (NYC).
Before swapping
After swapping
Left Dial Hand to STD or DST.
Second Hand to the city code you want to select as the
Hour Hand and c Minute Hand will
gure Home City settings” (page E-34) to correct
Home City World Time City
TOKYO (TYO)
10:08 p.m.
(Standard time)
NEW YORK (NYC)
9:08 a.m.
(Daylight saving time)
NEW YORK (NYC)
9:08 a.m.
(Daylight saving time)
TOKYO (TYO)
10:08 p.m.
(Standard time)
Checking the Current Time in a Different Time Zone
You can use the World Time Mode to view the current time in one of 29 time zones
around the globe. The city that is currently selected in the World Time Mode is called
the “World Time City”.
Hand Functions
Second Hand:
Indicates the currently selected World Time City.
Left Dial Hand:
Indicates the current STD (standard time) or DST
To specify standard time or daylight saving time (DST) for a city
Hold down
A for two
seconds
To swap your Home City and World Time City
(daylight saving time) setting of the currently selected
time zone.
Right Dial Hands:
Indicate the current time in the selected World Time
City in 24-hour format.
In the World Time Mode, use 1. D to select the city code
whose setting you want to change.
Wait until the x
move to the time in the currently selected World Time
City. You will not be able to perform step 2 of this
procedure until the hands stop moving.
Hold down 2. A for about two seconds until the watch
beeps. This will cause the v Left Dial Hand to toggle
between DST (daylight saving time) and STD (standard
time).
Note that you cannot switch between x STD (standard
time)/DST (daylight saving time) while UTC is
selected as the World Time City.
Note that the x STD (standard time)/DST (daylight
saving time) setting affects only the currently selected
time zone. Other time zones are not affected.
In the World Time Mode, use 1. D to select the World
Time City you want.
In this example, you would move the x
to NEW YORK (NYC) in order to select New York as
the World Time City.
Wait until the x
move to the time in the currently selected World Time
City. You will not be able to perform step 2 of this
procedure until the hands stop moving.
Right Dial Hands complete their
Second Hand
Right Dial Hands complete their
E-51
E-53
E-54
Hold down 2. B for about three seconds until the watch
beeps.
This will make the World Time City ( x NEW YORK (NYC)
in this example) your new Home City. At the same
time, it will change the Home City you had selected
Note
If your current World Time City supports time calibration signal reception, making it x
your Home City enables calibration signal reception for that city.
E-56
To change the alarm time setting
Use 1. C to move the
Use 2. D (+) and B (–) to change the alarm time setting.
Each press of either button will move the x
Holding down x D or B will start high-speed hand movement in the applicable
direction. To stop high-speed hand movement, press any button.
The alarm always works based on the time kept in the Timekeeping Mode. x
The watch will return to the Timekeeping Mode automatically if you do not x
perform any operation in the Alarm Mode for about two or three minutes.
To turn the alarm on or off
In the Alarm Mode, press A to toggle the alarm on and off. The x Second Hand will
indicate the current ON/OFF setting.
To stop the alarm
Press any button.
E-58
prior to step 2 (TOKYO (TYO) in this example), to your
World Time City.
After swapping the Home City and World Time City, x
the watch will stay in the World Time Mode. The
Second Hand will point to your new World Time City
(TOKYO (TYO) in this example).
Right Dial Hands will indicate the current time
The x
in your new World Time City.
Left Dial Hand to AL.
Right Dial Hands one minute.
Using the Alarm
When the alarm is turned on, an alarm will sound for about 10 seconds each day
when the time in the Timekeeping Mode reaches the preset alarm time. This is true
even if the watch is not in the Timekeeping Mode.
Hand Functions
Second Hand:
Indicates the current alarm ON/OFF setting.
Left Dial Hand: Points to AL.
Right Dial Hands:
Indicate the current alarm time setting in 24-hour
format.
Auto Correction of Hand Home Positions
Strong magnetism or impact can cause the hands and/or day setting to be off, even
if the watch is able to perform the signal receive operation. Auto correction of hand
home positions correct the hand position automatically.
Auto correction is performed in the Timekeeping Mode only. x
Auto correction corrects the positions of the x
Second Hand. For the dial hands and day, you must perform the manual
and
adjustment procedure under “Adjusting Home Positions Manually” (page E-62).
Each hour, the watch performs automatic correction of the hand positions x
from –55 minutes to +5 minutes.
You also can trigger auto correction of hand home positions manually, if you want. See
“To trigger auto correction of hand home positions” (page E-60) for more information.
Auto correction of hand home positions can take up to three and a half minutes to x
complete.
If hand positions are off by one hour or more, correct them using the procedure x
under “To trigger auto correction of hand home positions” (page E-60) or “Adjusting
Home Positions Manually” (page E-62).
Hour Hand, c Minute Hand,
E-55
E-57
x
E-59
Operation Guide 5263
x
x
n
v
v
v
m
m
m
c
5
6>
z
n
n
* 6
+B
x
z
b
n
v
m
x
z
b
z
x
x
@
z
x
x
x
x
@
B +
To trigger auto correction of hand home positions
Perform the following procedure when the time setting x
is off.
In the Timekeeping Mode, hold down D for about six
seconds until the
revolution.
If you release x D when the
seconds) in the above operation, the watch will enter the home position adjustment
mode, which is described under “Adjusting Home Positions Manually” (page E-62).
If this happens, press A to return to the Timekeeping Mode and then perform the
above operation again.
E-60
Though the x
three seconds after you hold down D, do not release
the button yet. Wait until the
a full revolution before you release D.
To interrupt an ongoing correction operation and return x
to the Timekeeping Mode, press D again.
Second Hand stops the fi rst time (after about three
Second Hand completes one full
Second Hand will stop momentarily about
Second Hand completes
Adjusting Home Positions Manually
Strong magnetism or impact can cause the hands and/or day of the watch to be off,
even if the watch is able to perform the signal receive operation. If this happens,
perform the applicable home position adjustment procedures in this section.
Hand home position adjustment is not required if the time and day settings are x
correct.
You also can use auto correction of the hand home positions (page E-59) to correct x
the home positions of the
Note
Any time after you enter the home position adjustment mode in step 1 of the following
procedure, you can return to the Timekeeping Mode by pressing A. The watch also
will return to the Timekeeping Mode automatically if you do not perform any operation
for about two or three minutes in the home position adjustment mode. In either case,
any adjustments you made before the watch returned to the Timekeeping Mode will
be applied.
E-62
Second
C C
Day Indicator
After confi rming that the 3.
This will switch to
The xz Hour Hand and c Minute Hand are at their proper home positions if
they both move to 12 o’clock. The
Hour Hand movement, and cannot be adjusted individually. If the hands are
not positioned correctly, use D (+) and B (–) to move them to their proper
home positions.
Hour Hand, c Minute Hand, and x Second Hand.
C
Hour/ c Minute/
24-hour
Second Hand is at the proper home position, press C.
Hour Hand and c Minute Hand home position adjustment.
C
Right Dial Hands
C
Left Dial Hand
Lower Dial Hand also will move along with
Manually triggered auto correction of hand home positions performs the following x
two steps.
The hands will move automatically in order to determine the home positions of the 1.
watch.
After the hand home positions are determined, the watch will return to normal 2.
timekeeping automatically. This completes the correction operation.
To adjust home positions manually
Hold down 1. C at least two seconds until the watch
beeps twice and enters the Timekeeping Mode.
Hold down 2. D for about three seconds until the watch
beeps.
The watch is now in the home position adjustment x
mode.
If the x
Second Hand moves to 12 o’clock, it is in the correct home position. If it
doesn’t, use D to move it to 12 o’clock.
Each press of x C in the home position adjustment mode will cycle through the
adjustment settings as shown below.
The watch will exit the adjustment mode automatically x
if you do not perform any operation for about two or
three minutes.
Second Hand home position adjustment.
First is x
After confi rming that the 4.
Hand are in their correct home positions, press C.
This will switch to
adjustment.
Right Dial Hands are at their proper home
The x
positions if they both move to 12 o’clock. If the hands
are not positioned correctly, use D (+) and B (–) to
move them to 12 o’clock.
Hour Hand and c Minute
Right Dial Hand home position
E-61
E-63
E-64
After confi rming that the 5.
correct home position, press C. This will advance to
Left Dial Hand home position adjustment.
The x
Left Dial Hand is in the correct home position if
it is pointing at 12 o’clock. If it isn’t, use D (+) and B
Press 7. A to return to the Timekeeping Mode.
Day Indicator moves to the current day, and then the z Hour Hand and
The x
Minute Hand move to the current time. Wait until everything stops moving.
the
E-66
■ The hands of the watch suddenly start moving at high speed, even when I do
not perform any operation.
This could be due to any one of the following causes. In all cases, the hand movement
does not indicate malfunction, and should stop shortly.
The watch is recovering from a sleep state (page E-16). x
The time setting is being adjusted following a successful auto time calibration x
signal receive operation (page E-18).
The watch is returning to the Timekeeping Mode automatically from the Alarm Mode x
(page E-58).
■ Hands suddenly stop moving. Button operation also is disabled.
The watch may be in the power recovery mode (page E-14). Do not perform any
operation until the hands return to their normal positions (in about 15 minutes). The
hands should return to their correct positions when normal operation returns. To help
power recover, leave the watch in a location where it is exposed to light.
E-68
(–) to move it to 12 o’clock.
After confi rming that the 6.
correct home position, press C. This will advance to
day home position adjustment.
Day Indicator is in the correct home position
The x
if it shows 1. If the 1 is not in the center of the
Indicator, use D (+) and B (–) to center it.
Right Dial Hands are in the
Left Dial Hand is in the
Day
Troubleshooting
Hand Movement and Position
■ I lost track of what mode the watch is in.
Refer to “To select a mode” (page E-32). To return directly to the Timekeeping Mode
from any other mode, hold down C at least two seconds.
Second Hand is moving at two-second intervals.
■ The
■ All the watch’s hands are stopped at 12 o’clock and none of the buttons work.
Power may be low. Expose the watch to light until the
normally, at one-second intervals (page E-12).
■ The current time setting is off by hours.
Your Home City setting may be wrong. Check your Home City setting and correct it, if
necessary (page E-34).
■ The current time setting is off by one hour.
If you are using the watch in an area where time calibration signal reception is
possible, see “To confi gure Home City settings” (page E-34).
If you are using the watch in an area where time calibration signal reception is not
possible, you may need to change your Home City’s STD (standard time)/DST
(daylight saving time) setting manually. Use the procedure under “To toggle the Home
City time between standard time and daylight saving time” (page E-36) to change the
STD/DST setting.
■ The hands and/or day indicator is off.
This could indicate that the watch has been exposed to magnetism or strong impact,
which has caused problems with proper hand and day alignment. Adjust the watch’s
hand and day home position alignment (page E-63).
Second Hand starts moving
E-65
E-67
E-69
Operation Guide 5263
n
n
x
World Time Mode
■ The World Time indicated by the
one hour off from the actual time in the selected time zone.
The STD (standard time)/DST (daylight saving time) setting of the selected World
Time City may be wrong. Select the correct STD (standard time)/DST (daylight saving
time) setting (page E-53).
■ The World Time indicated by the
is off.
Your Home City settings may be wrong. Check your Home City settings and correct
them, if necessary (page E-34).
Charging
■ The watch does not resume operation after I expose it to light.
This can happen after the power level drops to Level 3 (page E-12). Continue
exposing the watch to light until the
second intervals).
E-70
■ The x Second Hand indicates NO (N) when I check the result of the latest
receive operation.
Possible Cause Remedy Page
You are wearing or moving the x
watch, or performing a button
operation during the signal receive
operation.
The watch is in an area with poor x
reception conditions.
You are in an area where signal
reception is not possible for some
reason.
The calibration signal is not being
transmitted for some reason.
E-72
Right Dial Hands in the World Time Mode is
Right Dial Hands in the World Time Mode
Second Hand starts moving normally (at one-
Keep the watch in an area where reception
conditions are good while the signal receive
operation is being performed.
See “Approximate Reception Ranges”.
Check the website of the organization x
that maintains the time calibration signal
in your area for information about its
down times.
Try again later. x
E-23
E-20
—
■ Auto Receive is not performed or I cannot perform Manual Receive.
Possible Cause Remedy Page
The watch is in the Stopwatch Mode
or Countdown Timer Mode.
Your Home City setting is wrong.
A countdown timer operation is in
progress.
There is not enough power for signal
reception.
Auto Receive is not performed while
the watch is in the Stopwatch Mode or
Countdown Timer Mode. Hold down C at
least two seconds to enter the Timekeeping
Mode.
Check your Home City setting and correct
it, if necessary.
Both Auto Receive and Manual Receive
are impossible while a countdown is in
progress. In the Countdown Timer Mode,
stop the timer operation and then return to
the Timekeeping Mode.
Expose the watch to light to charge it. E-10
E-31
E-34
E-47
■ The x Second Hand starts to move at one-second intervals, but then suddenly
returns to moving at two-second intervals.
The watch probably is not suffi ciently charged yet. Continue keeping it exposed to
light.
Time Calibration Signal
The information in this section applies only when LONDON (LON), PARIS (PAR),
ATHENS (ATH), HONOLULU (HNL), ANCHORAGE (ANC), LOS ANGELES (LAX),
DENVER (DEN), CHICAGO (CHI), NEW YORK (NYC), HONG KONG (HKG), or
TOKYO (TYO) is selected as the Home City. You need to adjust the current time
manually when any other city is selected as the Home City.
E-71
■ The current time setting changes after I set it manually.
You may have the watch confi gured for Auto Receive of the time calibration signal
(page E-25), which will cause the time to be adjusted automatically according to your
currently selected Home City. If this results in the wrong time setting, check your
Home City setting and correct it, if necessary (page E-34).
■ The current time setting is off by one hour.
Possible Cause Remedy Page
Signal reception on a day for
switching between STD (standard
time)/DST (daylight saving time) may
have failed for some reason.
■ Signal reception is being performed successfully, but the time and/or day is
wrong.
Possible Cause Remedy Page
Your Home City setting is wrong.
The watch may have been exposed
to magnetism or strong impact, which
has caused problems with proper
hand and day alignment.
Perform the operation under “To get ready
for a receive operation”. The time setting
will be adjusted automatically as soon as
signal reception is successful.
If you are unable to receive the time
calibration signal, change the STD
(standard time)/DST (daylight saving time)
setting manually.
Check your Home City setting and correct
it, if necessary.
Adjust the watch’s hand and day home
positions.
E-23
E-36
E-73
E-34
E-62
E-74
Specifi cations
Accuracy at normal temperature: ± 15 seconds a month (with no signal calibration)
Timekeeping: Hour, minutes (hand moves every 10 seconds), seconds, 24-hour,
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Home City code (can be assigned one of 29 city codes and Coordinated
Time Calibration Signal Reception: Auto receive up to six times a day (5 times a
Receivable Time Calibration Signals:
E-76
day, day of the week
Universal Time); Daylight Saving Time (summer time) / Standard Time
day for the Chinese calibration signal; Remaining auto receives
cancelled as soon as one is successful); Manual receive
Mainfl ingen, Germany (Call Sign: DCF77, Frequency: 77.5 kHz);
Anthorn, England (Call Sign: MSF, Frequency: 60.0 kHz); Fukushima,
Japan (Call Sign: JJY, Frequency: 40.0 kHz); Fukuoka/Saga, Japan
(Call Sign: JJY, Frequency: 60.0 kHz); Fort Collins, Colorado, the
United States (Call Sign: WWVB, Frequency: 60.0 kHz); Shangqiu City,
Henan Province, China (Call Sign: BPC, Frequency: 68.5 kHz)
Stopwatch: Measuring capacity: 23:59'59.95"
Countdown Timer:
World Time: 29 cities (29 time zones) and Coordinated Universal Time
Alarm: Daily alarm
Other: Power Saving; Low battery alert; Auto Correction of Hand Home Positions
Power Supply: Solar panel and one rechargeable battery
Measuring unit: 1/20 second
Measuring mode: Elapsed time, split time
Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments)
Other: Auto switching to elapsed time measurement (1-second units) when the end
of a countdown timer operation is reached
Other: Standard Time/Daylight Saving Time (summer time); Home City/World Time
City swapping
Approximate battery operating time: 5 months (no exposure to light after a full
charge; Analog hands operational 18 hours per day and one signal reception of
approximately 4 minutes per day)
City Code Table
E-75
E-77
L-1
Operation Guide 5263
City Code Table
City Code City UTC Offset/GMT Differential
PAGO PAGO (PPG) Pago Pago –11
HONOLULU (HNL) Honolulu –10
ANCHORAGE (A N C ) Anchorage –9
LOS ANGELES (LAX) Los Angeles –8
DENVER ( D E N) Denver –7
CHICAGO (CHI) Chicago –6
NEW YORK ( N YC ) New York –5
SANTIAGO (SCL) Santiago –4
RIO Rio De Janeiro –3
F. DE NORONHA (FEN) Fernando de Noronha –2
PRAIA (RAI) Praia –1
UTC
LONDON (LON) London
PARIS (PAR) Paris +1
ATHENS (ATH) Athens +2
L-2
xBased on data as of December 2010.
xThe rules governing global times (UTC offset and GMT differential) and summer
time are determined by each individual country.
L-4
0
City Code City UTC Offset/GMT Differential
JEDDAH ( J E D) Jeddah +3
TEHRAN (THR) Tehran +3.5
DUBAI (DXB) Dubai +4
KABUL (KBL) Kabul +4.5
KARACHI (KHI) Karachi +5
DELHI (DEL) Delhi +5.5
DHAKA ( DA C) Dhaka +6
YANGON (RGN) Yangon +6.5
BANGKOK (BKK) Bangkok +7
HONG KONG (HKG) Hong Kong +8
TOKYO (TYO) Tokyo +9
ADELAIDE (ADL) Adelaide +9.5
SYDNEY (SYD) Sydney +10
NOUMEA (NOU) Noumea +11
WELLINGTON (WLG) Wellington +12
L-3
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