Operations are performed using the watch’s crown, and the two buttons
indicated by the letters A and B in this manual.
Hand Functions
z Hour Hand
x Second Hand
c Minute Hand
v Upper Dial Hand: Indicates a time, in 24-hour format, depending on the
b Lower Dial Hand: Indicates the current mode.
n Day
This User’s Guide uses numbers shown above to identify watch hands and
indicators.
About the crown
Some of the operations of this watch are performed by pulling out the crown,
while other operations are performed by pushing the crown in.
x
When pushing the crown in, make sure you push it in as far as it will go.
Operations may not be performed correctly if you push the crown in
incompletely.
When pulling out the crown, avoid using undue force, which creates the risk
x
of personal injury to your fi ngers and fi ngernails, and of watch malfunction.
current mode.
Congratulations upon your selection of this CASIO watch.
Note that the product illustrations in this manual are intended for reference only, and so the actual
x
product may appear somewhat different than depicted by an illustration.
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
1. Push in and hold the crown for at least two seconds to enter the Timekeeping Mode, and then
ENGLISH
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-7).
2. Check the Home City and the daylight saving time (DST) settings.
Use the procedure under “To confi gure Home City settings” (page E-26) to confi gure your Home City and
daylight saving time settings.
Important!
Proper time calibration signal reception depends on correct Home City, time, and date settings in the
Timekeeping Mode. Make sure you confi gure these settings correctly.
Second Hand.
NO
YES
The watch is charged suffi ciently. For
details about charging, see “Charging the
Watch” (page E-7).
Go to step 2.
YES
NEXT
E-1
E-3
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-14).
x To set the time manually
See “Confi guring Current Time and Date Settings Manually” (page E-31).
The watch is now ready for use.
x
For details about the watch’s radio controlled timekeeping feature, see “Radio Controlled Atomic
Timekeeping” (page E-11).
E-4
E-31 Confi guring Current Time and Date Settings Manually
E-31 To change the current time setting manually
E-33 To change the current date setting manually
E-35 Using the Stopwatch
E-35 To perform elapsed time measurement
E-37 Using the Countdown Timer
E-38 To specify the countdown start time
E-38 To perform a countdown timer operation
E-39 To stop the alarm
E-40 Using the Alarm
E-40 To change the alarm time setting
E-41 To turn the alarm on or off
E-41 To stop the alarm
E-42 Auto Correction of Hand Home Positions
E-43 Adjusting Home Positions Manually
E-44 To adjust home positions manually
E-46 Troubleshooting
E-52 Specifi cations
Contents
E-2 About This Manual
E-3 Things to check before using the watch
E-7 Charging the Watch
E-10 To recover from the sleep state
E-11 Radio Controlled Atomic Timekeeping
E-14 To get ready for a receive operation
E-16 To perform manual receive
E-17 To check the result of the latest receive operation
E-19 Mode Reference Guide
E-20 To determine the watch’s current mode
E-20 To return to the Timekeeping Mode from any other mode
E-20 To select a mode
E-22 Timekeeping
E-22 To check the city code of the currently selected TIME
E-24 To check whether TIME 1 or TIME 2 is currently displayed
E-25 To switch from TIME 1 to TIME 2
E-26 Confi guring Home City Settings
E-26 To confi gure Home City settings
E-29 To toggle the Home City time between standard time and daylight saving time
E-30 To manually override a time calibration standard time/daylight saving time setting
Charging the Watch
The face of the watch is a solar cell 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
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.
x
On the dashboard of a car parked in direct sunlight
Too close to an incandescent lampx
Under direct sunlightx
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.
When wearing the watch, makes
sure that its face is not blocked
from light by the sleeve of your
clothing.
The watch may enter a sleep
x
state (page E-10) if its face is
blocked by your sleeve even
only partially.
E-5
E-6
E-7
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Operation Guide 5141 (OC)
x
x
x
x
x
z
+
6
@
B
Important!
x
Keep the watch in an area normally exposed to bright light when storing it for long periods. This helps
to ensure that power does not run down.
x
Storing the watch for long periods in an area where there is no light or wearing it in 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.
Power Levels
You can get an idea of the watch’s power level by observing the movement of
the
Second Hand in the Timekeeping Mode.
x
Second Hand is moving normally at one-second intervals, power is
If the
at Level 1.
If the
x
Second Hand is moving at two-second intervals, power is at Level
2, which is quite low. Expose the watch to light as soon as possible so it
can charge.
Level Hand MovementFunction Status
1Normal.All functions enabled
Second Hand moves at two-second
x
2
intervals.
Moves at two-second
intervals.
E-8
The above times are for reference only. Actual times depend on lighting conditions.x
For details about the operating time and daily operating conditions, see the “Power Supply” section of x
the Specifi cations (page E-53).
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 DarkOperation
60 to 70 minutes (second hand sleep)
6 or 7 days (function sleep)
The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch is already in a sleep x
state when 6:00 AM arrives, however, it will remain in the sleep state.
The watch will not enter a sleep state while it is in the Stopwatch Modex or Countdown Timer Mode.
To recover from the sleep state
Move the watch to a well-lit area or press any button.
E-10
nn Day changes to 1 (home position).
xx Second Hand stopped.
3
zHour Hand and cc Minute Hand
stopped at 12 o’clock.
x
Second Hand only stopped at 12 o’clock, all other functions enabled
x
All functions, including analog timekeeping, disabled
Internal timekeeping maintainedx
Beeper, time calibration signal
reception, and countdown timer
operation disabled
All functions disabled
When power drops to Level 3, all functions will be disabled but the watch will continue to keep time x
internally for about one week. If you recharge the battery suffi ciently during this period, the analog
hands will move automatically to the 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.
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.
1 Approximate exposure each day to generate power for normal daily operation. *
2 Approximate exposure to take power up one level. *
Daily
Operation *1
Level Change *2
Level 3Level 2Level 1
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-31) 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.
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!
xHONOLULU (HNL) and ANCHORAGE (ANC) are quite far from the calibration
The areas covered by
signal transmitters, so certain conditions may cause reception problems.
xHONOLULU (HNL) or HONG KONG (HKG) is selected as the Home City, only the time and date
When
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-29) for information about how to do this.
The watch can receive the signal from the transmitter
located here:
Fort Collins, Colorado (United States)
E-11
E-9
Approximate Reception Ranges
The Anthorn signal is receivable
within this area.
E-12
To get ready for a receive operation
UK and German SignalsNorth American Signal
Anthorn
500 kilometers
1,500 kilometers
Japanese SignalsChinese Signal
500 kilometers
Fukuoka/Saga
Confi rm that the watch is in the Timekeeping Mode. If it isn’t, push in and hold the crown for at least two 1.
seconds to enter the Timekeeping Mode.
Place the watch in a location where signal reception is good.2.
E-14
Fukushima
12 o’clock
or
Mainfl ingen
1,000 kilometers
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
Changchun500 kilometers
Beijing
Shangqiu
Shanghai
Chengdu
Hong Kong
1,500 kilometers
Position the watch as shown in the nearby illustration, x
with 12 o’clock pointed towards a window. Make sure
there are no metal objects nearby.
Signal reception normally is better at night.
x
The receive operation takes from two to seven minutes, x
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.
Even when the watch is within range of a transmitter, signal reception may be impossible due to the x
effects of geographic contours, structures, weather, the time of year, the time of day, radio interference,
etc. The signal becomes weaker at distances of approximately 500 kilometers, which means that the
infl uence of the conditions listed above becomes even greater.
Signal reception may not be possible at the distances noted below during certain times of the year or
x
day. Radio interference may also cause problems with reception.
Mainfl ingen (Germany) or Anthorn (England) transmitters: 500 kilometers (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 June 2010, China does not use Daylight Saving Time (DST). If China does go to the Daylight x
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 signal that is different from the countries it x
supports may result in incorrect time indication due to local application of summer time, etc.
Signal reception may be diffi cult or even impossible under the conditions described below.x
Inside or among
buildings
What you should do next depends on whether you are using Auto Receive or Manual Receive.3.
Auto Receive: Leave the watch over night in the location you selected in step 2. See “Auto Receive” x
on page E-15 for details.
Manual Receive: Perform the operation under “To perform manual receive” on page E-16.x
Auto Receive
x
With Auto Receive, the watch performs the receive operation each day 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 only if it is in the
x
Timekeeping Mode. The receive operation is not performed if a calibration time is reached while you
are confi guring settings.
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 hightension power
lines
Among
or behind
mountains
E-13
E-15
Page 3
Operation Guide 5141 (OC)
z
x
c
v
b
n
x
+
6B*
@>
*
b
b
b
*
x
@
x
x
@
To perform manual receive
In the Timekeeping Mode (page E-20), keep 1. B depressed (for about two seconds) as the
Second Hand (short end) goes through the following sequence.
xYES (or Y for some models) or NO (N) to indicate the last signal reception result, then to
Moves to
READY (R).
Second Hand (short end) indicates the operations the watch is currently performing.
The 2.
(Second hand
short end)
E-16
Radio-controlled Atomic Timekeeping Precautions
x
Strong electrostatic charge can result in the wrong time setting.
Even if a receive operation is successful, certain conditions can cause the time setting to be off by up x
to one second.
The watch is designed to update the date and day of the week automatically for the period January
x
1, 2000 to December 31, 2099. Updating of the date by signal reception will no longer be performed
starting from January 1, 2100.
x
If you are in an area where signal reception is not possible, the watch keeps time with the precision
noted in “Specifi cations” (page E-52).
The receive operation is disabled under any of the following conditions.x
While power is at Level 2 or lower (page E-8)−
While the watch is in the power recovery mode (page E-9)−
While the watch is in the function sleep state (power saving, page E-10)−
While a countdown time operation is in progress (page E-37)−
A receive operation is cancelled if an alarm sounds while it is being performed.x
When the xx Second Hand
(short end) is pointed here:
READY (R)Watch is setting up for reception.
WORK (W)Reception is in progress.
YES (Y)Reception was completed successfully.
NO (N)Reception failed for some reason.
If signal reception is unstable, the xxx Second Hand (short end) may move
between WORK (W) and READY (R).
When the receive operation is successful, the watch adjusts the time
x
setting accordingly, and then resumes normal timekeeping. It does not
adjust the setting if the operation failed.
Note
To interrupt a receive operation and return to the Timekeeping Mode,
x
press any button.
It means this:
To check the result of the latest receive operation
In the Timekeeping Mode, press B.
xx Second Hand (short end) will move to YES (Y) for about one second
The
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 pressing
xB while the
Second Hand (short end) is pointing to YES (Y) or NO (N).
Note
xx Second Hand (short end) will indicate NO (N) if you have adjusted the
The
time or date setting manually since the latest receive operation.
Mode Reference Guide
Your watch has four “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 of 29 other cities x
around the globe
x
View the current date in the Home City
Confi gure Home City and daylight saving time (DST) settingsx
Perform a time calibration receive operationx
Confi gure time and date settings manuallyx
Switch between the two Home Citiesx
Use the stopwatch to measure elapsed timeStopwatch ModeE-35
Use the countdown timerCountdown Timer ModeE-37
Set an alarm timeAlarm ModeE-40
Timekeeping ModeE-22
E-17
E-18
Selecting a Mode
With this watch, everything starts from the Timekeeping Mode.
E-20
To determine the watch’s current mode
Check the position of the
mode” (page E-20).
To return to the Timekeeping Mode from any other mode
Except while the watch is performing auto hand home position correction, push
in and hold the crown for at least two seconds.
To select a mode
Each push of the crown cycles through the modes in the sequence shown
below. The
x
Lower Dial Hand indicates the currently selected mode.
When pushing the crown in, make sure you push it in as far as it will go. x
Operations may not be performed correctly if you push the crown in
incompletely.
When you go from the Alarm Mode to the Timekeeping Mode, the
Dial Hand fi rst indicates TIME 1 or TIME 2 (page E-22), and then moves to
the current day of the week.
Lower Dial Hand as shown under “To select a
Timekeeping
In the Timekeeping Mode, you can confi gure two different time zones (TIME 1 and TIME 2) as Home
Cities, so you can switch between them to view their current dates and times. To enter the Timekeeping
Mode from another mode, push in and hold the crown for at least two seconds.
The watch confi guration used in this manual assumes that TIME 1 is confi gured as your main Home
x
City.
For details about using TIME 2, see “About TIME 2” (page E-23).
x
Hand Functions
z Hour Hand
x Second Hand
c Minute Hand
v Upper Dial Hand: Indicates the current hour in the Home City time in
b Lower Dial Hand: For about one second after entering the Timekeeping
To check the city code of the currently selected TIME
Pressing A in the Timekeeping Mode will cause the
currently selected TIME and stay there for about one second.
For details about city codes, see the “City Code Table” at the back of this manual.
x
E-22
n Day
24-hour format.
Mode, shows TIME 1 (1-TIME) or TIME 2 (TIME-2). After
that, shows the current day of the week for the selected
TIME.
Second Hand to move to the city code of the
Lower
E-19
Timekeeping ModeStopwatch Mode
The hand indicates the day of the
week (Su, Mo, Tu, We, Th, Fr, Sa).
Alarm ModeCountdown Timer Mode
Hand points to AL.Hand points to TR.
About TIME 2
This watch supports two Home Cities: a main Home City (TIME 1) and a second Home City (TIME 2).
TIME 2 also can be confi gured with one of 29 city codes (time zones) around the world. While TIME 2 is
selected in the Timekeeping Mode, the alarm, and time calibration signal auto receive functions operate in
accordance with the TIME 2 time.
If the city code you select for TIME 2 supports time calibration signal reception (page E-11), signal
x
reception will be performed accordingly when TIME 2 is selected.
When the watch corrects the current time setting in accordance with a time calibration signal, it will x
correct both the TIME 1 and TIME 2 settings.
Support for two Home Cities allows you to do the following.x
Example: Taking a trip from Tokyo to New York (a), then from New York to London (b), and then
back to Tokyo (c)
a) While en route from Tokyo to New York
a-1. Switch the Timekeeping Mode from TIME 1 (Tokyo) to TIME 2.
See “To switch from TIME 1 to TIME 2” (page E-25).
a-2. Select the New York city code for Time 2.
See “To confi gure Home City settings” (page E-26).
b) En route from New York to London
Change the TIME 2 city code to London.
See “To confi gure Home City settings” (page E-26).
c) En route back to Tokyo from London
Switch the Timekeeping Mode from TIME 2 (London) back to TIME 1 (Tokyo).
See “To switch from TIME 1 to TIME 2” (page E-25).
Push the crown in.
Hand points to ST.
E-21
E-23
Page 4
Operation Guide 5141 (OC)
x
b
*@
z
v
b
*
z
v
b
*
b
*
x
x
z
b
@
+
6*B@
x
b
b
b
* @
b
b
*
To check whether TIME 1 or TIME 2 is currently displayed
TIME 1TIME 2
E-24
In the Timekeeping Mode, push the crown in four times.
x
This will re-enter the Timekeeping Mode (page E-21).
The xb Lower Dial Hand will indicate either TIME 1 (1-TIME) or TIME
2 (TIME-2) for about one second. After that, the
will move to the current day of the week.
When you return to the Timekeeping Mode from another mode
x
(by pushing in and holding the crown for about two seconds), the
Lower Dial Hand will move directly to the day of the week without
fi rst indicating TIME 1 or TIME 2.
Lower Dial Hand
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
x
This watch does not have a city code that corresponds to Newfoundland.
TOKYO (TYO)
E-26
Push in and hold the crown for at least two seconds.1.
This will enter the Timekeeping Mode (page E-21).
x
Pull out the crown.2.
x
This will cause the
currently selected TIME (page E-22).
This indicates the city code setting mode.
x
If you do not perform any operation with the crown for about three x
minutes after pulling it out, crown operations will become disabled and
the hand will not move if you rotate the crown. If this happens, push the
crown back in and then pull it out again.
For details about city codes, see the “City Code Table” at the back of
x
this manual.
Rotate the crown to move the 3.
to assign to the currently selected TIME.
Each time you select a city code, the
x
Lower Dial Hand and n Day move to the current time and date for
that city code.
Second Hand to move to the city code of the
Second Hand to the city code you want
Hour Hand, c Minute Hand,
To switch from TIME 1 to TIME 2
TOKYO (TYO)
City code
STD setting by time
calibration signal
DST setting by time
calibration signal
Press 4. A to toggle the time for the currently selected city code between STD
(standard time) and DST (daylight saving time).
In the city code setting mode, the short end of the
x
indicates the current daylight saving time setting as STD (standard time) or
DST (daylight saving time).
Note that an
xAUTO setting (Auto STD or Auto DST) will be indicated only if
the currently selected city code is one that supports calibration time signal
reception. While AUTO is selected, the watch will switch between STD and
DST automatically in accordance with time calibration signal data.
While
xAUTO is in use, the short end of the b Lower Dial Hand will point to
the STD side or the DST side of AUTO, depending on the current STD/DST
setting.
The initial default setting is
xAUTO when any one of the following city
codes is selected as the Home City code: LONDON (LON), PARIS (PAR),
ATHENS (ATH), NEW YORK (NYC), CHICAGO (CHI), DENVER (DEN), LOS
ANGELES (LAX), ANCHORAGE (ANC), or TOKYO (TYO).
For details about the Daylight Saving Time setting, see “Daylight Saving
x
Time (DST)” (page E-28).
After the settings are the way you want, push the crown back in to return to 5.
the Timekeeping Mode.
In the Timekeeping Mode, hold down 1. A and keep it held down until
step 2 of this procedure is complete (about three seconds). During that
period, the watch will perform the following operations automatically.
The xx Second Hand will move to the city code of the currently
selected TIME (TIME 1 or TIME 2).
Next, the
x
You can release 2. A after the TIME is indicated by the
Hand.
x
xA during the one second after switching will indicate the
xA in the Timekeeping
Second Hand will move to the city code of the other TIME.
After that, the time and date settings will change to those for the x
newly selected TIME.
Finally, the x
TIME 2) selection.
After about one second, the
current day of the week for the selected TIME.
Pressing
day of the week immediately.
To return to TIME 1 from TIME 2, hold down
Mode again.
Lower Dial Hand will indicate the new TIME (TIME 1 or
Lower Dial Hand will indicate the
Lower Dial
E-25
Lower Dial Hand
E-27
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 Mainfl ingen (Germany), Anthorn (England), or Fort Collins
(the United States) include both Standard Time and DST data.
Note that an
xAUTO setting (Auto STD or Auto DST) will be indicated only if the currently selected city
code is one that supports calibration time signal reception. While AUTO is selected, the watch will
switch between STD and DST automatically in accordance with time calibration signal data.
The initial default setting is
xAUTO when any one of the following city codes is selected as the Home
City code: LONDON (LON), PARIS (PAR), ATHENS (ATH), NEW YORK (NYC), CHICAGO (CHI),
DENVER (DEN), LOS ANGELES (LAX), ANCHORAGE (ANC), or TOKYO (TYO).
For information about manually overriding the time calibration STD/DST setting, see “To manually
x
override a time calibration standard time/daylight saving time setting” (page E-30).
Note that you cannot switch between xSTD (standard time) and DST (daylight saving time) while UTC*
is selected as your Home City.
Coordinated Universal Time, the world-wide scientifi c standard of timekeeping. The reference point for *
UTC is Greenwich, England.
If you experience problems receiving the time calibration signal in your area, it probably is best to
x
switch between Standard Time and Daylight Saving Time (summer time) manually (page E-30).
E-28
Note
x
Selecting some city codes makes it possible for the watch to receive the time calibration signal for the
corresponding area automatically. See page E-11 for details.
To manually override a time calibration standard time/daylight saving time setting
STD by manual setting
DST by manual setting
Perform steps 1 and 2 under “To confi gure Home City settings” on page E-26.1.
x
Each time you select a city code, the
Upper Dial Hand move to the current time for that city code.
Hold down 2. A for about three seconds until the short end of the
Hand points to DST.
This is the STD/DST manual/auto switching mode.
x
Performing the above step selects manual DST switching.x
Note that you cannot switch between manual and auto switching while the x
currently selected city code of the Home City is one that does not support
time calibration signal reception.
Each press of 3. A toggles between STD and DST as shown in the illustration
to the left.
Push the crown back in to return to the Timekeeping Mode.4.
Hour Hand, c Minute Hand, and
Lower Dial
STD/DST Switching
STD/DST switching can be performed either automatically or manually, depending on time calibration
signal reception conditions in your area, the use of daylight saving time in your area, etc.
To confi gure the watch to switch between STD and DST automatically in accordance with a time −
calibration signal, see “To toggle the Home City time between standard time and daylight saving
time” (page E-29)
To override time calibration data and use a fi xed STD/DST setting, see “To manually override a time
−
calibration standard time/daylight saving time setting” (page E-30).
To toggle the Home City time between standard time and daylight saving time
STD setting by time
calibration signal
DST setting by time
calibration signal
Perform steps 1 and 2 under “To confi
Each time you select a city code, the x
Upper Dial Hand move to the current time for that city code.
Press 2. A to toggle the time for the currently selected city code between STD
(standard time) and DST (daylight saving time).
The short end of the
x
saving time setting as STD (standard time) or DST (daylight saving time).
When
xAUTO is enabled, the short end of the b Lower Dial Hand will point
to the STD side of AUTO or the DST side (depending on the current STD/
DST setting) of AUTO.
After the settings are the way you want, push the crown back in to return to 3.
the Timekeeping Mode.
Lower Dial Hand will indicate the current daylight
gure Home City settings” on page E-26.1.
Hour Hand, c Minute Hand, and
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
In the Timekeeping Mode, pull out the crown.1.
TOKYO (TYO)
This will cause the x
currently selected TIME (page E-22).
At this time, the short end of the
x
Home City’s current daylight saving time setting (STD or DST).
If you do not perform any operation with the crown for about three minutes
x
after pulling it out, crown operations will become disabled and the hand
will not move if you rotate the crown. If this happens, push the crown back
in and then pull it out again.
Second Hand to move to the city code of the
Lower Dial Hand will indicate the
E-29
E-30
E-31
Page 5
Operation Guide 5141 (OC)
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Change the Home City and daylight saving time (DST) settings, if you want.2.
x
For details about these settings, see steps 2 and 3 under “To confi gure
Home City settings” (page E-26).
Hold down 3. B for about two seconds. This will enter the time setting mode.
x
Rotate the crown to adjust the time (hour and minute) setting.4.
Rotating the crown two full consecutive turns clockwise will cause the x
moving clockwise. Rotating the crown another two full consecutive turns clockwise will cause the
Minute Hand to start moving at high speed. To stop hand movement, press any button or rotate
the crown one full turn counterclockwise.
The
xv Upper Dial Hand is synchronized with the z Hour Hand.
When adjusting the setting, check to make sure that the x
a.m. time or p.m. time.
If you want to change the date setting at this time, press
xB and perform the procedure starting from
step 3 under “To change the current date setting manually” (page E-33).
After the settings are the way you want, push the crown back in to return to the Timekeeping Mode.5.
x
This causes timekeeping to resume with the
E-32
0
9
8
6
Setting the year (ones digit)
00
80
70
60
Setting the year (tens digit)
E-34
The watch will beep and the
xB cycles between settings as shown
In the following steps, each press of
below.
Home city/DSTHour/MinuteDay
1
57
10
50
Press 7. B. This will enter the year setting mode.
The
xz Hour Hand will move to the number that represents the
2
tens digit of the year and the
number that represents the ones digit. The
move to the 12 o’clock and stop there.
3
Rotate the crown to adjust the year setting.8.
xB
If you want to change the time setting at this time, press
and then perform the procedure starting from step 4 under “To
change the current time setting manually” (page E-31).
4
After the settings are the way you want, push the crown back in to 9.
return to the Timekeeping Mode.
x
This causes timekeeping to resume with the
starting from the 12 o’clock.
The day of the week indicated by the
x
20
changes automatically in accordance with the date (year, month,
and day).
Note
3090
The watch’s built-in full automatic calendar makes allowances for
x
different month 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.
40
Second Hand will move to the 12 o’clock.
YearMonth
Minute Hand to start
Upper Dial Hand correctly indicates an
Second Hand starting from the 12 o’clock.
Minute Hand will move to the
Second Hand will
Second Hand
Lower Dial Hand
To change the current date setting manually
In the Timekeeping Mode, pull out the crown.1.
Nov
Oct
Sep
Aug
JulMay
Setting the month
Dec
Jun
x
This will cause the
the currently selected TIME (page E-22).
Hold down 2. B for about two seconds.
x
The watch will beep and the
12 o’clock.
Press 3. B. This will enter the date setting mode.
xn Day will move slightly left and right to indicate the setting
The
mode.
Rotate the crown to adjust the date setting.4.
Jan
After the 5.
Feb
setting mode.
The
xx Second Hand will move to the currently selected month.
This is the month setting mode.
Mar
Rotate the crown to adjust the month setting.6.
Apr
Second Hand to move to the city code of
Day stops moving, press B. This will enter the month
Using the Stopwatch
The stopwatch measures elapsed time and split times.
Hand Functions
z Hour Hand: Indicates the stopwatch minute count
x Second Hand: Indicates the 0.05-second count during stopwatch operation.
c Minute Hand: Indicates the stopwatch seconds count.
v Upper Dial Hand: Indicates the stopwatch minute count
b Lower Dial Hand: Points to ST.
To perform elapsed time measurement
Use the crown to enter the Stopwatch Mode, which causes the 1.
Now you can perform either of following stopwatch operations.2.
A
StartStop(Restart)(Stop)Reset
AAAB
(1 revolution = 60 minutes).
(1 revolution = 120 minutes).
Lower Dial Hand to move to ST.
Second Hand will move to the
E-33
E-35
Note
x
The Stopwatch Mode can indicate elapsed time up to 1 hour, 59 minutes, 59.95 seconds.
The nearby display illustration shows a stopwatch reading of 20 minutes, 45.10 seconds.x
The watch’s bezel is marked in 0.05-second units.x
An ongoing stopwatch operation will continue even if you pull out the crown.x
In the following cases, the hands of the watch are moving, so pressing xB will not perform a reset
operation.
While the hands are moving to elapsed timekeeping after you enter the Stopwatch Mode
−
While the watch is changing dates at midnight−
Once started, stopwatch timing continues until you press xA 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
xA 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 12 o’clock.
The
xx Second Hand indicates the 0.05-second count for the fi rst 30 seconds of a stopwatch elapsed
time operation. After that, the hand stops at 12 o’clock, but 0.05-second timing continues internally
after the fi rst 30 seconds. The
pressed.
E-36
Second Hand will jump to the current value whenever A (Stop) is
To specify the countdown start time
Use the crown to enter the Countdown Timer Mode, which will move the 1.
Lower Dial Hand to TR.
In the Countdown Timer Mode, pull out the crown. This enters the countdown 2.
start time setting mode.
x
To perform a countdown timer operation
A
StartStopReset
Pressing xB while the Countdown Timer is stopped resets the displayed time to the start time specifi ed
by you.
E-38
If you do not perform any operation with the crown for about three minutes
after pulling it out, crown operations will become disabled and the hand
will not move if you rotate the crown. If this happens, push the crown back
in and then pull it out again.
Rotate the crown to set the countdown start time.3.
x
Rotating the crown two full consecutive turns clockwise will cause the
Minute Hand to start moving clockwise. Rotating the crown another
two full consecutive turns clockwise will cause the
moving at high speed. To stop hand movement, press any button or rotate
the crown one full turn counterclockwise.
The maximum countdown start time setting is 60 minutes. To set a x
countdown start time of 60 minutes, move the c Minute Hand to 12 o’clock.
AB
Minute Hand to start
Using the Countdown Timer
The countdown timer can be confi gured within a range of one minute to 60 minutes. An alarm sounds for
about 10 seconds when the timer reaches zero, and a count up elapsed time operation starts.
Hand Functions
z Hour Hand: Indicates the elapsed time hour.
x Second Hand: Indicates countdown or elapsed seconds.
c Minute Hand: Indicates countdown or elapsed minutes.
v Upper Dial Hand: Indicates elapsed time in 24-hour format.
b Lower Dial Hand: Points to TR.
All hands move counterclockwise during a countdown. They automatically x
switch to clockwise movement when elapsed time measurement begins after
the countdown is complete.
E-37
Pressing xB will not perform a reset while the watch is performing any of the following operations.
While the hands are moving to the current timer time after you enter the Countdown Timer Mode.
−
While the displayed date is changing at midnight.−
Before starting a countdown timer operation, check to make sure that the countdown timer is not x
already operating (indicated by a moving x Second Hand). If it is, press A to stop it and then B to
reset to the countdown start time.
All hands move counterclockwise during a countdown. They automatically switch to clockwise
x
movement when elapsed time measurement begins after the countdown is complete. An elapsed time
measurement operation will continue until you press A to stop it.
Pulling out the crown while a countdown or an elapsed time measurement operation is in progress will
x
stop the ongoing operation and reset to the countdown start time.
Elapsed Time Measurement Following Countdown
When the countdown reaches zero, the watch starts to count up elapsed time in one-second increments.
When the watch switches to elapsed time measurement, the hands automatically switch to clockwise
movement.
You can pause and restart an elapsed time operation by pressing
xA. While an elapsed time operation
is paused, pressing B resets to the countdown start time.
To stop the alarm
Press any button.
Note
x
Pressing any button while the alarm is sounding simply stops the alarm sound. 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 A.
E-39
Page 6
Operation Guide 5141 (OC)
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x
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n
n
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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 (TIME 1 or TIME 2) (page E-22) reaches the preset alarm time. This is true even if the
watch is not in the Timekeeping Mode.
Hand Functions
z Hour Hand: Indicates the currently set alarm time hour.
x Second Hand: Short end indicates the current alarm ON/OFF setting.
c Minute Hand: Indicates the currently set alarm time minute.
v Upper Dial Hand: Indicates the currently set alarm time in 24-hour format.
b Lower Dial Hand: Points to AL.
To change the alarm time setting
Use the crown to enter the Alarm Mode, which will move the 1.
In the Alarm Mode, pull out the crown to enter the alarm setting mode.2.
If you do not perform any operation with the crown for about three minutes after pulling it out, crown x
operations will become disabled and the hand will not move if you rotate the crown. If this happens,
push the crown back in and then pull it out again.
E-40
Lower Dial Hand to AL.
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 corrects the hand position
automatically.
Auto correction is performed in the Timekeeping Mode only.
x
Auto correction corrects the positions of all hands. For the x
adjustment procedure under “Adjusting Home Positions Manually” (page E-43).
If the
x
Upper Dial Hand is 12 hours off of the current correct time, correct the setting using the
procedure under “Adjusting Home Positions Manually” (page E-43).
Auto correction of the
x
watch is in the sleep state.
Auto correction of hand home positions can take up to three and a half minutes to complete.
x
Lower Dial Hand is performed once a day in the middle of the night, while the
Day, you must perform the manual
Rotate the crown to set the alarm time.3.
x
Rotating the crown two full consecutive turns clockwise will cause the
moving clockwise. Rotating the crown another two full consecutive turns clockwise will cause the
Minute Hand to start moving at high speed. To stop hand movement, press any button or rotate
the crown one full turn counterclockwise.
Push the crown back in to exit the alarm setting mode.4.
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 perform any operation in x
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 between on and off. The
indicate the current ON/OFF setting.
To stop the alarm
Press any button.
Minute Hand to start
Second Hand (short end) will
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 correct.
x
Note
x
Any time after you enter the home position adjustment mode in step 2 of the following procedure, you
can return to the Timekeeping Mode by pushing the crown back in. In either case, any adjustments you
made before the watch returned to the Timekeeping Mode will be applied.
If you do not perform any operation with the crown for about three minutes after pulling it out, crown
x
operations will become disabled and hands will not move if you rotate the crown. If this happens, push
the crown back in and then pull it out again.
E-41
E-42
To adjust home positions manually
E-44
Push in and hold the crown for at least two seconds to enter the Timekeeping 1.
Mode.
Pull out the crown.2.
Hold down 3. B for about seven seconds. This will cause the watch to beep
twice and then the
x
Though the
you hold down B, do not release the button yet. Wait until the
Hand completes a full revolution before you release B.
This operation will enter the home position adjustment mode and cause
x
all of the watch’s hands (but not the n Day) to move automatically to their
home positions.
Home position adjustment is complete when all hands are at their
x
12 o’clock positions.
If the x
hold down A for about two seconds to move it there.
To exit the home position adjustment operation and return to the
x
Timekeeping Mode, push the crown back in.
Second Hand will perform one full revolution.
Second Hand will stop momentarily about two seconds after
Upper Dial Hand is not pointing at 24, which is its home position,
Second
Troubleshooting
Hand Movement and Position
■ I lost track of what mode the watch is in.
Refer to “To select a mode” (page E-20). To return directly to the Timekeeping Mode from any other
mode, push in and hold the crown for at least two seconds.
■ When pressing in the crown to enter the Stopwatch Mode from the Timekeeping Mode, the
crown needs to be held down longer than when switching to another mode.
The watch is designed this way in order to ensure that the Timekeeping Mode is not exited unintentionally
due to accidental pressing of the crown. When entering the Stopwatch Mode from the Timekeeping Mode,
push in the crown as far as it will go and hold it down until the mode changes.
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
second intervals (page E-8).
■ 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-10).x
The time setting is being adjusted following a successful auto time calibration signal receive operation x
(page E-11).
The watch is returning to the Timekeeping Mode automatically from the Alarm Mode (page E-40).x
Second Hand starts moving normally, at one-
Press 4. B.
This enters the x
Check the 5.
If the x
Rotating the crown two full consecutive turns clockwise will cause the x
Day to start changing in a forward direction (increment). If you want the Day to change in a reverse direction (decrement), rotate the crown two
full turns counterclockwise.
To stop
x
Push the crown back in to return to the Timekeeping Mode.6.
x
This will cause the hands to return to their normal positions and resume
normal timekeeping. Wait until everything stops moving before performing
any other operation.
■ Hands suddenly stop moving. Button operation also is disabled.
The watch may be in the power recovery mode (page E-9). 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.
■ 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
x
E-26).
Your watch supports display of the current times in one of two different Home Time zones named TIME
x
1 and TIME 2. Check to make sure that your watch is displaying the Home Time zone you want (page
E-22).
■ The current time setting is off by one hour.
x
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-26).
The watch’s STD (standard time)/DST (daylight saving time) setting can be confi gured for auto x
switching in accordance with a time calibration signal. You also can manually override the STD/DST
setting confi gured by the calibration signal. If you use manual override to select a setting, timekeeping
will be off by one hour following an STD/DST switching data in your area, even if the watch is receiving
a time calibration signal. Select the correct STD (standard time)/DST (daylight saving time) setting to
suit your current location (page E-28).
If you are using in the watch in an area where time calibration signal reception is not possible, you may
x
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-29) to change the STD/DST setting.
Day home position adjustment mode.
Day to confi rm that it is 1, which is its home position.
Day is not 1, rotate the crown until it is.
Day movement, press any button.
E-43
E-45
E-46
E-47
Page 7
Operation Guide 5141 (OC)
x
x
■ The hands and/or day indications are 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-42).
TIME 1 and TIME 2
The TIME 1 time is correct, but the TIME 2 time is off.■
The STD (standard time)/DST (daylight saving time) setting of TIME 2 may be wrong. Select the correct
STD (standard time)/DST (daylight saving time) setting (page E-28).
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-8). Continue exposing the watch to light
until the
Second Hand starts moving normally (at one-second intervals).
The ■
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-48
■ The current time setting is off by one hour.
Possible CauseRemedyPage
Signal reception on a day for switching between
STD (standard time)/DST (daylight saving) may
have failed for some reason.
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) setting manually.
E-14
E-28
■ Auto Receive is not performed or I cannot perform Manual Receive.
Possible CauseRemedyPage
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.Expose the watch to light to charge it.E-7
Auto Receive is not performed while the watch is
in the Stopwatch Mode or Countdown Timer Mode.
Push in and hold the crown for 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.
E-20
E-11
E-26
E-37
■ The x Second Hand (short end) indicates NO (N) when I check the result of the latest receive
operation.
Possible CauseRemedyPage
You are wearing or moving the watch, or x
performing a button operation during the signal
receive operation.
The watch is in an area with poor reception x
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.
■ 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-15), 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-26).
Keep the watch in an area where reception
conditions are good while the signal receive
operation is being performed.
See “Approximate Reception Ranges”.E-12
Check the website of the organization that x
maintains the time calibration signal in your area
for information about its down times.
Try again later.x
E-14
—
E-49
■ Signal reception is being performed successfully, but the time and/or day is wrong.
Possible CauseRemedyPage
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.
Check your Home City setting and correct it, if
necessary.
Adjust the watch’s hand and day home positions.E-43
E-11
E-26
E-50
Specifi cations
Accuracy at normal temperature: ± 15 seconds a month (with no signal calibration)
Timekeeping (World time): Hour, minutes (hand moves every 10 seconds), seconds, 24-hour, day, day
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 Universal Time);
Daylight Saving Time (summer time) / Standard Time; Dual Home City times (TIME 1 and
TIME 2)
Time Calibration Signal Reception: Auto receive up to six times a day (5 times a day for the Chinese
Receivable Time Calibration Signals:
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
Stopwatch: Measuring capacity: 1:59'59.95"
Countdown Timer:
Alarm: Daily alarm
E-52
Province, China (Call Sign: BPC, Frequency: 68.5 kHz)
Measuring unit: 0.05 seconds
Measuring mode: Elapsed time
Measuring unit: 1 second
Input range: 1 to 60 minutes (1-minute increments)
Other: Elapsed time
of the week
calibration signal; Remaining auto receives cancelled as soon as one is successful);
Manual receive
Other: Power Saving; Auto Correction of Hand Home Positions
Power Supply: Solar cell and one rechargeable battery
Approximate battery operating time: 5 months (no exposure to light after a full charge; one signal
reception of approximately 4 minutes per day)
City Code Table
City CodeCity
PAGO PAGO (PPG) Pago Pago–11
HONOLULU (HNL)Honolulu–10
ANCHORAGE
LOS ANGELES
DENVER(DEN)Denver–7
CHICAGO(CHI)Chicago–6
NEW YORK (NYC)New York–5
SANTIAGO (S CL)Santiago–4
RIORio De Janeiro–3
F. DE NORONHA
PRAIA(RAI)Praia–1
UTC
LONDON(LON)London
PARIS(PAR)Paris+1
ATHENS(ATH)Athens+2
(ANC) Anchorage–9
(LAX) Los Angeles–8
(FEN)
Fernando de Noronha
x Based on data as of July 2010.
x The rules governing global times (UTC offset and GMT differential) and summer time are determined
by each individual country.
UTC Offset/
GMT Differential
–2
0
City CodeCity
JEDDAH(JED)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(DAC)Dhaka+6
YANGON(RGN)Yangon+6.5
BANGKOK (BKK)Bangkok+7
HONG KONG
TOKYO(TYO)Tokyo+9
ADELAIDE (ADL)Adelaide+9.5
SYDNEY(SYD)Sydney+10
NOUMEA(NOU)Noumea+11
WELLINGTON
(HKG)Hong Kong+8
(WLG)Wellington+12
UTC Offset/
GMT Differential
E-51
E-53
L-1
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