MA0908-EA
Operation Guide 5089
Important!
Congratulations upon your selection of this CASIO watch.
• 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.
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.
• 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
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.
You can get an idea of the watch’s power level by
observing the movement of the xSecond Hand in the
Timekeeping Mode.
B
+
• If the xSecond Hand is moving normally at one-second
intervals, power is at Level 1.
• If the xSecond 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.
About This Manual
Button operations are indicated using the letters A through
D shown in the illustration.
B
@
+
Hand Functions
z Hour Hand
x Second Hand
c Minute Hand
@
5
Moves at two-second
intervals.
v Left Dial Hand:
Indicates the current day of the week and current mode.
Level Hand Movement
Function Status
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6
5
1
Normal.
All functions enabled
b 24-hour Hand:
Indicates the current 24-hour timekeeping hour.
The long end indicates the current hour between 18:00
and 6:00. The short end indicates the current hour
between 6:00 and 18:00.
xSecond Hand moves at two-second
intervals.
Beeper, time calibration signal
reception disabled
2
mDay changes to 1 (home position).
xSecond Hand stopped.
z Hour Hand and cMinute Hand
stopped at 12 o’clock.
3
All functions disabled
n Right Dial Hands: Indicate a time, in 24-hour format, depending on the current
mode.
m Day
• When power drops to Level 3, all functions will be disabled but the watch will
continue to keep time internally for about one week. If you recharge the battery
sufficiently 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.
This User’s Guide uses numbers shown above to identify watch hands and indicators.
Things to check before using the watch
Power Recovery Mode
1. Hold down C for about two seconds to enter the Timekeeping Mode, and
then observe the movement of the xSecond Hand.
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.
Is the xSecond Hand moving smoothly at one-second intervals?
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.
NO
YES
The watch is charged sufficiently.
For details about charging, see
“Charging the Watch”.
Is the xSecond Hand moving at
two-second intervals or is it stopped
completely?
Charging Times
YES
NEXT
Level Change *2
Daily
Level 3
Level 2
Level 1
Exposure Level (Brightness)
Operation
*1
Power is low. Charge the watch by placing
it in a location where it is exposed to light.
For details, see “Charging the Watch”.
Go to step 2.
Outdoor sunlight (50,000 lux)
Window sunlight (10,000 lux)
8 minutes
2 hours
23 hours
90 hours
30 minutes
6 hours
8 hours
92 hours
2. Check the Home City and the daylight saving time (DST) setting.
Window sunlight on cloudy day
(5,000 lux)
48 minutes
8 hours
– – –
– – –
Use the procedure under “To configure Home City settings” to configure your Home
City and daylight saving time settings.
Indoor fluorescent lighting (500 lux)
* 1 Approximate exposure each day to generate power for normal daily operation.
* 2 Approximate exposure to take power up one level.
• The above times are for reference only. Actual times depend on lighting conditions.
• For details about the operating time and daily operating conditions, see the “Power
Supply” section of the Specifications.
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
configure these settings correctly.
3. Set the current time.
Power Saving
• To set the time using a time calibration signal
See “To get ready for a receive operation”.
• To set the time manually
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.
See “Configuring Current Time and Date Settings Manually”.
• There actually are two sleep state levels: “second hand sleep” and “function sleep”.
The watch is now ready for use.
• For details about the watch’s radio controlled timekeeping feature, see “Radio
Controlled Atomic Timekeeping”.
Elapsed Time in Dark
Operation
xSecond Hand only stopped at 12 o’clock, all
other functions enabled
60 to 70 minutes (second hand sleep)
• All functions, including analog timekeeping,
disabled
6 or 7 days (function sleep)
• Internal timekeeping maintained
Charging the Watch
• The watch will not enter a sleep state between 6:00 AM and 9:59 PM. If the watch
is already in a sleep state when 6:00 AM arrives, however, it will remain in the sleep
state.
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.
• The watch will not enter a sleep state while it is in the Stopwatch Mode.
Charging Guide
To recover from the sleep state
Move the watch to a well-lit area or press any button.
Whenever you are not
wearing the watch, leave
it in a location where it is
exposed to light.
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
sleep state if its face is
blocked by your sleeve
even only partially.
• Best charging
Radio Controlled Atomic Timekeeping
performance is achieved
by exposing the watch to
light that is as strong as
possible.
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 “Configuring Current
Time and Date Settings Manually” 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.
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
• Too close to an incandescent lamp
• Under direct sunlight
The watch can receive the signal from the
If your Home City code setting is this:
transmitter located here:
LON, PAR, ATH
Anthorn (England), Mainflingen (Germany)
Shangqiu City (China)
HKG
TYO
Fukushima (Japan), Fukuoka/Saga (Japan)
Fort Collins, Colorado (United States)
HNL, ANC, LAX, DEN, CHI, NYC
1
Operation Guide 5089
To select a mode
Note
Press C to cycle between the modes as shown below. The vLeft Dial Hand
indicates the currently selected mode.
• After you specify a city code, the watch will use UTC* offsets to calculate the
World Time based on the current time in your Home City.
• Selecting some city codes makes it possible for the watch to receive the time
calibration signal for the corresponding area automatically.
Timekeeping Mode
C
Stopwatch Mode
* Coordinated Universal Time, the world-wide scientific standard of timekeeping.
The reference point for UTC is Greenwich, England.
The hand indicates the day
of the week (SU, MO, TU,
WE, TH, FR, SA).
The hand points to 0.
Configuring Current Time and Date Settings Manually
You can configure current time and date settings manually when the watch is unable
to receive a time calibration signal.
Alarm Mode
World Time Mode
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The hand points to ALM.
The hand points to STD
or DST.
To change the current time setting manually
1. In the Timekeeping Mode, keep A depressed (for about
five seconds) as the xSecond Hand goes through the
following sequence.
• Moves to 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.
Timekeeping
Use the Timekeeping Mode to view the current time and date. To enter the
Timekeeping Mode from any other mode, hold down C for about two seconds.
• The vLeft Dial Hand will indicate whether the
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@
currently selected city code is configured for standard
time (STD) or daylight saving/summer time (DST).
Hand Functions
z Hour Hand
x Second Hand
c Minute Hand
v Left Dial Hand: Indicates the day of the week.
b 24-hour Hand:
Indicates the current 24-hour timekeeping hour. The
long end indicates the current hour between 18:00 and
6:00. The short end indicates the current hour between
6:00 and 18:00.
B
@
+
2. Change the Home City and daylight saving time (DST) settings, if you want.
• For details about these settings, see steps 2 and 3 under “To configure Home
City settings”.
• In the following steps, each press of C cycles between settings as shown
below.
Year
(tens digit)
Home city/DST
Hour/Minute
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*
6
5
Year
(ones digit)
n Right Dial Hands:
Indicate the current time in the World Time City in
24-hour format.
m Day
Day
Month
B
@
+
3. Press C.
• The xSecond Hand will move to 12 o’clock. This is
the time setting mode.
Configuring Home City Settings
There are two Home City settings: actually selecting the Home City and selecting
either standard time or daylight saving time (DST).
4. Use D (+) and B (–) to change the time (hour and
minute) setting.
• Each press of either button will move the hands
(zHour Hand and cMinute Hand) one minute.
• Holding down D or B will start high-speed zHour
Hand and cMinute Hand movement in the applicable
direction. To stop high-speed hand movement, press
any button.
• The b24-hour Hand and zHour Hand move in sync
with each other.
• When setting the time, make sure that the b24-hour
Hand indicates the proper a.m./p.m. hour.
To configure Home City settings
Note
• This watch does not have a city code that
corresponds to Newfoundland.
*
1. In the Timekeeping Mode, keep A depressed (for about
five seconds) as the xSecond Hand goes through the
following sequence.
• Moves to 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
• If you want to change the date setting at this time, press C and perform the
procedure starting from step 3 under “To change the current date setting
manually”.
selected Home City.
• This is the city code setting mode.
• The watch will exit the setting mode automatically if you do not perform any
operation for about two or three minutes.
• For details about city codes, see the “City Code Table”.
5. After the time setting is the way you want, press A to return to regular
timekeeping.
• This will cause the xSecond Hand to move automatically to 12 o’clock and
resume movement from there.
B
+
2. To change the Home City setting, press D to move the
xSecond Hand clockwise.
To change the current date setting manually
• Keep pressing D until the xSecond Hand is pointing
at the city code you want to select as your Home City.
• Each time you change the city code setting, the z
Hour Hand, cMinute Hand, b24-hour Hand and
mDay move to the current time and date for that city
code. Do not perform the next operation until these
hands stop moving.
1. In the Timekeeping Mode, keep A depressed (for
about five seconds) as the xSecond Hand goes
through the following sequence.
• Moves to 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.
@
00
10
20
90
30
3. Press B to toggle the time for the currently selected
city code between STD (standard time)/DST (daylight
saving time).
2. Press C twice.
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5
• The xSecond Hand will move to the tens digit
of the current year setting. This is the year
setting mode.
• The year can be set in the range of 2000 to
2099.
80
40
• While you are selecting the Home City code, the vLeft Dial Hand will indicate
whether the currently selected city code is configured for standard time (STD) or
daylight saving/summer time (DST).
• Note that you cannot switch between STD (standard time)/DST (daylight saving
time) while UTC is selected as your Home City.
70
50
60
Setting the year (tens digit)
3. Press D to move the xSecond Hand clockwise
until it is pointing at the year tens digit you want
to select.
@
4. After all the settings are the way you want, press A to return to the Timekeeping
0
Mode.
1
4. After you select the year tens digit, press C.
• The xSecond Hand will move to the ones digit
of the current year.
To toggle the Home City time between standard time and daylight saving time
1. Perform the step 1 under “To configure Home City settings”.
• Each time you select a city code, the zHour Hand, cMinute Hand, and
b24-hour Hand move to the current time for that city code. Do not perform the
next operation until these hands stop moving.
• While you are selecting the Home City code, the vLeft Dial Hand will indicate
whether the currently selected city code is configured for standard time (STD) or
daylight saving/summer time (DST).
2
9
3
5. Press D to move the xSecond Hand clockwise
until it is pointing at the year ones digit you want
to select.
8
4
7
5
6
2. Press B to toggle the time for the city code of the currently selected Home City
between STD (standard time)/DST (daylight saving time).
Setting the year (ones digit)
• Note that you cannot switch between STD (standard time)/DST (daylight saving
time) while UTC is selected as your Home City.
3. After the setting is the way you want, press A to return to the Timekeeping Mode.
3
Operation Guide 5089
Dec
Checking the Current Time in a Different Time Zone
6. After you select the year ones digit, press C.
• The xSecond Hand will move to the currently
selected month. This is the month setting
mode.
Nov
Jan
You can use the World Time Mode to view the current time in one of 29 time
zones around the globe. Each time zone has a “city code”, which is a three-letter
abbreviation of a representative city in the zone. The representative city of the time
zone that is currently selected in the World Time Mode is called the “World Time City”.
Oct
Feb
7. Use D to move the xSecond Hand to the
month setting you want.
Sep
Mar
Hand Functions
@
8. After the month setting is the way you want,
press C.
• The xSecond Hand will move to 12 o’clock,
and the watch will enter the day setting mode.
x Second Hand: Indicates the currently selected World
Aug
Apr
Time City.
v Left Dial Hand: Indicates the current STD (standard
time) or DST (daylight saving time)
setting of the currently selected World
Time City.
Jul
May
@
Jun
Setting the month
n Right Dial Hands: Indicate the current time in the
selected World Time City in 24-hour
format.
@
9. Use D (+) and B (–) to change the mDay
setting.
• If you want to change the time setting at
this time, press C and then perform the
procedure starting from step 3 under “To
change the current time setting manually”.
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6
To view the time in another time zone
1. Use C to move the vLeft Dial Hand to STD or DST.
• This indicates the World Time Mode.
10. After the settings are the way you want, press
A to return to regular timekeeping.
• This will cause the xSecond Hand to move
automatically to 12 o’clock and resume
movement from there.
• The day of the week indicated by the v
Left Dial Hand changes automatically in
accordance with the date (year, month, and
day).
2. Use D to move the xSecond Hand to the city code you want to select as the
World Time City.
• The nRight Dial Hands will move to the current time in the currently selected
World Time City. At this time, the zHour Hand and cMinute Hand will continue
to indicate the current time in the Home City.
• For full information on city codes, see the “City Code Table”.
• If you think that the time indicated for the selected World Time City is not correct,
it probably means that there is something wrong with your Home City settings.
Use the procedure under “To configure Home City settings” to correct the Home
City settings.
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5
Note
• The watch’s built-in full automatic calendar makes allowances for 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.
To specify standard time or daylight saving time (DST) for a time zone
1. In the World Time Mode, use D to select the city code
for the time whose setting you want to change.
• Wait until the nRight Dial Hands complete their
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.
Using the Stopwatch
The stopwatch measures elapsed time and split times.
2. Hold down A for about two seconds until the watch
beeps. This will cause the vLeft Dial Hand to toggle
between DST (daylight saving time) and STD (standard
time).
• Note that you cannot switch between STD (standard
time)/DST (daylight saving/summer time) while UTC is
selected as the World Time City.
• Note that the STD (standard time)/DST (daylight
saving/summer time) setting affects only the currently
selected time zone. Other time zones are not affected.
Hand Functions
x Second Hand: Indicates the stopwatch 1/10-second
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6
count.
Hold down
A for two
seconds
v Left Dial Hand: Indicates the stopwatch 1/100-second
count.
n Right Dial Hands: Indicate the stopwatch minutes and
seconds.
To perform elapsed time measurement
1. Use C to move the vLeft Dial Hand to 0.
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6
• This indicates the Stopwatch Mode.
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.
2. Now you can perform either of following stopwatch operations.
• You will not be able to perform any stopwatch operation while the hands are
moving to their initial positions after you enter the Stopwatch Mode.
• To perform an elapsed time operation
The following example shows what happens when the Home City and World Time
City are swapped while the Home City originally is TYO (Tokyo) and the World Time
City is NYC (New York).
B
B
Home City
World Time City
B
B
D
Start
Stop
(Restart)
(Stop)
Reset
Tokyo
New York
9:08 a.m.
Before swapping
After swapping
10:08 p.m.
(Standard time)
(Daylight saving time)
To pause at a split time
New York
9:08 a.m.
(Daylight saving time)
Tokyo
10:08 p.m.
B
B
D
D
Normal stopwatch hand movement will
resume automatically after five seconds.
(Standard time)
Start
Split
Stop
Reset
To swap your Home City and World Time City
Note
@
1. In the World Time Mode, use D to select the World
Time City you want.
• The Stopwatch Mode can indicate elapsed time up to 23 minutes, 59.99 seconds.
• In the following cases, the hands of the watch are moving, so pressing D or B will
not perform any stopwatch 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 B to stop it, even if you
exit the Stopwatch Mode to another mode or timing reaches the stopwatch limit
defined above.
• In this example, you would move the xSecond Hand
to NYC in order to select New York as the World
Time City.
• Wait until the nRight Dial Hands complete their
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.
• Whenever you enter the Stopwatch Mode, the hands of the watch move to their
initial Stopwatch Mode positions. If you did not reset the stopwatch the last time you
used it, the hands will return to the positions they were in the last time you exited
the Stopwatch Mode.
• The xSecond Hand indicates the 1/10-second count for the first 30 seconds of
a stopwatch elapsed time operation. After that, the hand stops at 0. 1/10-second
timing continues internally after the first 30 seconds, and the xSecond Hand will
jump to the current value whenever B (Stop) or D (Split) is pressed.
• Though the vLeft Dial Hand is stopped while an elapsed time measurement
operation is in progress, the watch keeps track of the 1/100-second count
internally. The vLeft Dial Hand will jump to the current 1/100-second reading
whenever you stop the stopwatch or perform a split time operation.
6
2. Hold down B for about three seconds until the watch
beeps.
• This will make the World Time City (NYC in this
example) your new Home City. At the same time, it
will change the Home City you had selected prior to
step 2 (TYO in this example) to your World Time City.
• After swapping the Home City and World Time City,
the watch will stay in the World Time Mode. The
xSecond Hand will point to your new World Time City
(TYO in this example).
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6
• The nRight Dial Hands will indicate the current time
in your new World Time City.
Note
• If your current World Time City supports time calibration signal reception, making it
your Home City enables calibration signal reception for that city.
4
Operation Guide 5089
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6
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.
5. After confirming that the nRight Dial Hands are in the
correct home position, press C. This will advance to
vLeft Dial Hand home position adjustment.
• The vLeft Dial Hand is in the correct home position if
it is pointing at 12 o’clock. If it isn’t, use D (+) and B
(–) to move it to 12 o’clock.
Hand Functions
@
6. After confirming that the vLeft Dial Hand is in the
correct home position, press C. This will advance to
day home position adjustment.
• The mDay is in the correct home position if it shows
1. If it doesn’t, use D (+) and B (–) to change the
day to 1.
x Second Hand: Indicates the current alarm ON/OFF
setting.
v Left Dial Hand: Points to ALM.
n Right Dial Hands: Indicate the current alarm time
5
setting in 24-hour format.
7. Press A to return to the Timekeeping Mode.
• The mDay moves to the current day, and then the zHour Hand and the
cMinute Hand will move to the current time. Wait until everything stops moving.
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6
To change the alarm time setting
1. Use C to move the vLeft Dial Hand to ALM.
• This indicates the Alarm Mode.
Troubleshooting
Hand Movement and Position
■■ꢀI lost track of what mode the watch is in.
Refer to “To select a mode”. To return directly to the Timekeeping Mode from any
other mode, hold down C for about two seconds.
2. Use D (+) and B (–) to change the alarm time setting.
• Each press of either button will move the nRight Dial Hands one minute.
• Holding down 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.
• The watch will return to the Timekeeping Mode automatically if you do not
perform any operation in the Alarm Mode for about two or three minutes.
■■ꢀThe xSecond Hand is moving at two second intervals.
■■ꢀ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 xSecond Hand starts moving
normally, at one-second intervals.
To turn the alarm on or off
In the Alarm Mode, press A to toggle the alarm on and off. The xSecond Hand will
indicate the current ON/OFF setting.
■■ꢀ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.
To stop the alarm
Press any button.
• The time setting is being adjusted following a successful auto time calibration
signal receive operation.
• The watch is returning to the Timekeeping Mode automatically from the Alarm
Mode.
Adjusting Home Positions
■■ꢀHands suddenly stop moving. Button operation also is disabled.
The watch may be in the power recovery mode. 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 power recovers. To help power recover, leave the
watch in a location where it is exposed to light.
Strong magnetism or impact can cause the hands and/or date 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.
■■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.
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.
■■ꢀ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 configure Home City settings”.
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/summer time) setting manually. Use the procedure under “To toggle
the Home City time between standard time and daylight saving time” to change the
STD/DST setting.
To adjust home positions
1. Hold down C for about two seconds until the xSecond
Hand stops and then starts moving again.
B
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+
2. Hold down D for about three seconds.
• The xSecond Hand will start to move when you first
press D. Keep D depressed until the xSecond
Hand stops.
• The watch is now in the home position adjustment
mode.
■■ꢀ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.
World Time Mode
• The watch will exit the home adjustment mode
automatically if you do not perform any operation for
about two or three minutes.
• First is xSecond Hand home position adjustment.
• If the xSecond 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 C in the home position adjustment
mode will cycle through the adjustment settings as
shown below.
■■ꢀThe World Time indicated by the nRight Dial Hands in the World Time Mode is
one hour off from the actual time in the selected World Time City.
The STD (standard time)/DST (daylight saving/summer time) setting of the selected
World Time City may be wrong. Select the correct STD (standard time)/DST (daylight
saving/summer time) setting.
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5
■■ꢀThe World Time indicated by the nRight Dial Hands in the World Time Mode
is off.
Your Home City settings may be wrong. Check your Home City settings and correct
them, if necessary.
xSecond
mDay
zHour/ cMinute/ b24-hour
nRight Dial Hands
Charging
■■ꢀThe watch does not resume operation after I expose it to light.
This can happen after the power level drops to Level 3. Continue exposing the watch
to light until the xSecond Hand starts moving normally (at one-second intervals).
vLeft Dial Hand
• When adjusting a hand or the date home position, it is recommended that after
you move to a proper home position, you press B to move the setting back one
step. Next, press D again to return it to the home position. This helps to ensure
better home position adjustment accuracy.
■■ꢀThe xSecond Hand starts to move at one-second intervals, but then suddenly
returns to moving at two-second intervals.
The watch probably is not sufficiently charged yet. Continue keeping it exposed to
light.
3. After confirming that the xSecond Hand is at the proper
Time Calibration Signal
B
@
+
home position, press C. This will switch to zHour
Hand and cMinute Hand home position adjustment.
• The zHour Hand and cMinute Hand are at their
proper home positions if they both move to 12 o’clock.
The b24-hour Hand also will move along with
zHour 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.
The information in this section applies only when LON, PAR, ATH, HNL, ANC, LAX,
DEN, CHI, NYC, HKG, or 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.
■■ꢀThe xSecond Hand indicates NO (N) when I check the result of the latest
receive operation.
Possible Cause
Remedy
• You are wearing or moving the watch, or
performing a button operation during the
signal receive operation.
• The watch is in an area with poor
reception conditions.
Keep the watch in an area where reception
conditions are good while the signal receive
operation is being performed.
4. After confirming that the zHour Hand and cMinute
Hand are in their correct home positions, press C.
This will switch to nRight Dial Hands home position
adjustment.
*
6
You are in an area where signal reception
is not possible for some reason.
See “Approximate Reception Ranges”.
• The nRight Dial Hands are at their proper home positions if they both move
to 24. If the hands are not positioned correctly, use D (+) and B (–) to move
them to 24.
• Check the website of the organization that
maintains the time calibration signal in your
area for information about its down times.
The calibration signal is not being
transmitted for some reason.
• Try again later.
5
Operation Guide 5089
■■ꢀThe current time setting changes after I set it manually.
City Code Table
You may have the watch configured for Auto Receive of the time calibration signal,
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.
City
City
UTC Offset/
GMT Differential
City
Code
UTC Offset/
GMT Differential
City
Code
PPG
HNL
ANC
LAX
DEN
CHI
Pago Pago
Honolulu
Anchorage
Los Angeles
Denver
–11
–10
–9
–8
–7
–6
–5
–4
–3
–2
–1
JED
THR
DXB
KBL
KHI
DEL
DAC
RGN
BKK
HKG
TYO
ADL
SYD
NOU
WLG
Jeddah
Tehran
Dubai
Kabul
Karachi
Delhi
+3
+3.5
+4
+4.5
+5
+5.5
+6
+6.5
+7
+8
+9
+9.5
+10
+11
+12
■■ꢀThe current time setting is off by one hour.
Possible Cause
Remedy
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.
Chicago
Signal reception on a day for switching
between STD (standard time)/DST
(daylight saving/summer time) may have
failed for some reason.
NYC
SCL
RIO
New York
Santiago
Rio De Janeiro
Dhaka
Yangon
Bangkok
Hong Kong
Tokyo
Adelaide
Sydney
Noumea
Wellington
If you are unable to receive the time calibration
signal, change the STD (standard time)/DST
(daylight saving/summer time) setting manually.
FEN Fernando de Noronha
RAI
UTC
LON
PAR
ATH
Praia
0
London
Paris
Athens
■■ꢀAuto Receive is not performed or I cannot perform Manual Receive.
+1
+2
Possible Cause
Remedy
Auto Receive is not performed while the watch
is in the Stopwatch Mode. Hold down C for
about two seconds to enter the Timekeeping
Mode.
• ꢀBased on data as of December 2008.
• ꢀThe rules governing global times (GMT differential and UTC offset) and summer
time are determined by each individual country.
The watch is in the Stopwatch Mode.
Check your Home City setting and correct it,
if necessary.
Your Home City setting is wrong.
There is not enough power for signal
reception.
Expose the watch to light to charge it.
■■ꢀSignal reception is being performed successfully, but the time and/or day is
wrong.
Possible Cause
Remedy
Check your Home City setting and correct it,
if necessary.
Your Home City setting is wrong.
The watch may have been exposed to
magnetism or strong impact, which has Adjust the watch’s hand and day home
caused problems with proper hand and positions.
day alignment.
Specifications
Accuracy at normal temperature: 15 seconds a month (with no signal calibration)
Timekeeping: Hour, minutes (hand moves every 10 seconds), seconds, 24-hour,
day, day of the week
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
Time Calibration Signal Reception: Auto receive up to six times a day (5 times a
day for the Chinese calibration signal; Remaining auto receives
cancelled as soon as one is successful); Manual receive
Receivable Time Calibration Signals:
Mainflingen, 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: 23’59.99”
Measuring unit: 1/100 second
Measuring mode: Elapsed time, split time
World Time: 29 cities (29 time zones) and Coordinated Universal Time
Other: Standard Time/Daylight Saving Time (summer time); Home City/World Time
City swapping
Alarm: Daily alarm
Other: Power Saving
Power Supply: Solar cell and one rechargeable battery
Approximate battery operating time: 5 months (no exposure to light after a
full charge; 10 seconds alarm beeper operation and one signal reception of
approximately 4 minutes per day)
6
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