Page 1
MO1106-EA
Operation Guide 3268
Getting Acquainted
Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to read this manual carefully.
• Be sure to keep all user documentation handy for future reference.
Keep the watch exposed to bright light
Bright Light
l
l
l
l
l
l
l
Solar cell
The electricity generated by the solar cell of the watch is
stored by a rechargeable battery. Leaving or using the
l
l
l
l
watch where it is not exposed to light causes the battery
to run down. Make sure the watch is exposed to light as
much as possible.
• When you are not wearing the watch on your wrist,
position the face so it is pointed at a source of bright
light.
• You should try to keep the watch outside of your sleeve
as much as possible. Charging is reduced significantly if
the face is covered only partially.
E-1
• The watch continues to operate, even when it is not exposed to light. Leaving the
watch in the dark can cause the battery to run down, which will result in some watch
functions to be disabled. If the battery goes dead, you will have to re-configure watch
settings after recharging. To ensure normal watch operation, be sure to keep it
exposed to light as much as possible.
Battery charges in the light. Battery discharges in the dark.
Solar cell
(Converts light to
electrical power.)
E-2
About This Manual
• Depending on the model of your watch, display text appears either as dark figures
on a light background or light figures on a dark background. All sample displays in
this manual are shown using dark figures on a light background.
• Button operations are indicated using the letters shown in the illustration.
• Each section of this manual provides you with the information you need to perform
operations in each mode. Further details and technical information can be found in
the “Reference” section.
E-4
Procedure Lookup
The following is a handy reference list of all the operational procedures contained in
this manual.
Bright Light
LEVEL 1
LEVEL 2
LEVEL 3
Charge
LEVEL 4
Rechargeable battery
Electrical
energy
All
functions
enabled
Dis-
charge
LEVEL 1
LEVEL 2
LEVEL 3
LEVEL 4
Some or all
functions
disabled
To specify your Home City ...................................................................................E-12
To perform manual receive .................................................................................. E-26
To turn auto receive on and off ........................................................................... E-28
To check the latest signal reception results ...................................................... E-29
To view the time in another city........................................................................... E-34
To toggle a city code time between Standard Time and
Daylight Saving Time ...................................................................................... E-35
To set an alarm time ............................................................................................. E-37
To test the alarm ................................................................................................... E-38
To turn an alarm on and off.................................................................................. E-39
E-6
• The actual level at which some functions are disabled depends on the watch model.
• Frequent display illumination can run down the battery quickly and require charging.
The following guidelines give an idea of the charging time required to recover from a
single illumination operation.
Approximately 5 minutes exposure to bright sunlight coming in through a window
Approximately 8 hours exposure to indoor fluorescent lighting
• Be sure to read “Power Supply” (page E-50) for important information you
need to know when exposing the watch to bright light.
If the display of the watch is blank...
If the display of the watch is blank, it means that the watch’s Power Saving function
has turned off the display to conserve power.
• See “Power Saving Function” (page E-67) for more information.
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.
E-3
Contents
General Guide ......................................................................................................... E-8
Radio-controlled Atomic Timekeeping ............................................................... E-10
World Time ............................................................................................................. E-33
Alarms .................................................................................................................... E-36
Stopwatch .............................................................................................................. E-41
Countdown Timer .................................................................................................. E-43
Illumination ............................................................................................................ E-46
Power Supply ........................................................................................................ E-50
Timekeeping .......................................................................................................... E-58
Reference .............................................................................................................. E-65
Specifications ....................................................................................................... E-75
E-5
To turn the Hourly Time Signal on and off ..........................................................E-40
To measure times with the stopwatch ................................................................ E-42
To configure the countdown timer ...................................................................... E-44
To use the countdown timer ................................................................................ E-45
To illuminate the display manually ...................................................................... E-46
To specify the illumination duration ................................................................... E-47
To turn the auto light switch on and off.............................................................. E-49
To set the time and date manually ...................................................................... E-59
To change the Daylight Saving Time (summer time) setting ............................ E-63
To turn the button operation tone on and off .....................................................E-66
To recover from the sleep state ........................................................................... E-68
To turn Power Saving on and off ......................................................................... E-68
E-7
General Guide
• Press C to change from mode to mode.
• In any mode (except when a setting screen is on the display), press L to illuminate
the display.
Timekeeping Mode
C
▲
C
E-8
World Time Mode
CC
▲
Countdown Timer Mode Stopwatch Mode
Alarm Mode
▲
▲
C
C
▲
E-9
Page 2
Operation Guide 3268
Radio-controlled Atomic Timekeeping
This watch receives a time calibration signal and updates its time setting accordingly.
• This watch is designed to pick up the time calibration signals transmitted in Germany
(Mainflingen), England (Anthorn), the United States (Fort Collins), China (Shangqiu),
and Japan (Fukushima, Fukuoka/Saga).
Current Time Setting
This watch adjusts its time setting automatically in accordance with a time calibration
signal. You also can perform a manual procedure to set the time and date, when
necessary.
• The first thing you should do after purchasing this watch is to specify your
Home City (the city where you normally will use the watch). For more
information, see “To specify your Home City” (page E-12).
• When using the watch outside the areas covered by the time signal transmitters, you
will have to adjust the current time setting manually as required. See “Timekeeping”
(page E-58) for more information about manual time settings.
E-10
To specify your Home City
City code
PM indicator Seconds
Hour : Minutes
E-12
Time Calibration Signal Reception
There are two different methods you can use to receive the time calibration signal:
auto receive and manual receive.
• Auto Receive
With auto receive, the watch receives the time calibration signal automatically up to
6 times a day (5 times a day for the Chinese calibration signal). When any auto
receive is successful, the remaining auto receive operations are not performed. For
more information, see “About Auto Receive” (page E-21).
• Manual Receive
Manual receive lets you start a time calibration receive operation with the press of a
button. For more information, see “To perform manual receive” (page E-26).
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press D (east) and B (west) to select the city code
you want to use as your Home City.
LIS, LON : Lisbon, London
MAD, PA R, RO M, BER, STO : Madrid, Paris,
Rome, Berlin, Stockholm
ATH : Athens
MOW : Moscow
HKG, BJS, TPE : Hong Kong, Beijing, Taipei
SEL, TYO : Seoul, Tokyo
HNL : Honolulu
ANC : Anchorage
YVR, LAX : Vancouver, Los Angeles
YEA, DEN : Edmonton, Denver
MEX, CHI : Mexico City, Chicago
NYC : New York
• The U.S. time calibration signal can be picked up by the watch while in North
America. The term “North America” in this manual refers to the area that consists of
Canada, the continental United States, and Mexico.
• As of December 2010, China does not use Daylight Saving Time (DST). If China
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
countries it supports may result in incorrect time indication due to local application of
summer time, etc.
E-11
YHZ : Halifax
YYT : St.Johns
3. Press A to exit the setting screen.
• Normally, your watch should show the correct time as soon as you select your Home
City code. If it does not, it should adjust automatically after the next auto receive
operation (in the middle of the night). You also can perform manual receive (page
E-26) or you can set the time manually (page E-59).
• The watch will receive the time calibration signal automatically from the applicable
transmitter (in the middle of the night) and update its settings accordingly. For
information about the relationship between city codes and transmitters, see page
E-17 and “Transmitters” (page E-70).
• See the maps under “Approximate Reception Ranges” (page E-18) for information
about the reception ranges of the watch.
• You can disable time signal reception, if you want. See “To turn auto receive on and
off” on page E-28 for more information.
• Under factory default settings, auto receive is turned off for all of the following city
codes: MOW (Moscow), HNL (Honolulu), and ANC (Anchorage). For details about
turning on auto receive for these city codes, see “To turn auto receive on and off” on
page E-28.
Important!
• When getting ready to receive the time calibration signal, position the watch as
shown in the nearby illustration, with its 12 o’clock side pointing towards a window.
This watch is designed to receive a time calibration signal late at night. Because of
this, you should place the watch near a window as shown in the illustration when you
take it off at night. Make sure there are no metal objects nearby.
12 o’clock
or
E-13
E-14
• Proper signal reception can be difficult or even impossible under the conditions listed
below.
Near
Anthorn
Inside a
vehicle
household
appliances,
office
equipment,
or a mobile
phone
Near a
construction
site, airport,
or other
sources of
electrical
noise
Mainflingen
Inside or
among
buildings
• Signal reception normally is better at night than during the day.
• Time calibration signal reception takes from two to seven minutes, but in some
cases it can take as long as 14 minutes. Take care that you do not perform any
button operations or move the watch during this time.
E-16
Approximate Reception Ranges
U.K. and German Signals
1,500 kilometers
500 kilometers
The Anthorn signal
is receivable within
this area.
E-18
Near hightension power
lines
U.S. Signal
Among or
behind
mountains
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
• Make sure the watch is facing the right way.
• The time calibration signal the watch will attempt to pick up depends on its current
Home City code setting as shown below.
Home City Code
LIS, LON, MAD, PAR, ROM,
BER, STO, ATH, MOW*
HKG, BJS
TPE, SEL, TYO
HNL*, ANC*, YVR, LAX, YEA,
DEN, MEX, CHI, NYC, YHZ, YYT
* The areas covered by the HNL, ANC, and MOW city codes are quite far from the
time calibration signal transmitters, and so certain conditions may cause problems
with signal reception.
• Calibration signal reception is disabled while a countdown timer operation is in
progress.
Japan Signals
500 kilometers
Fukuoka/Saga
1,000 kilometers
Signals are receivable in the Taiwan area when reception conditions are good.
1,500 kilometers
500 kilometers
Chengdu
Shangqiu
Transmitter
Anthorn (England)
Mainflingen (Germany)
Shangqiu City (China)
Fukushima (Japan)
Fukuoka/Saga (Japan)
Fort Collins, Colorado
(the United States)
500 kilometers
Fukushima
1,000 kilometers
China Signal
Frequency
60.0 kHz
77.5 kHz
68.5 kHz
40.0 kHz
60.0 kHz
60.0 kHz
Changchun
Beijing
Shanghai
Hong Kong
E-15
E-17
E-19
Page 3
Operation Guide 3268
• Signal reception may not be possible at the distances noted below during certain
times of the year or day. Radio interference also may cause problems with reception.
Mainflingen (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)
• Even when the watch is within the reception range of the transmitter, signal
reception will be impossible if the signal is blocked by mountains or other geological
formations between the watch and signal source.
• Signal reception is affected by weather, atmospheric conditions, and seasonal
changes.
• See the information under “Signal Reception Troubleshooting” (page E-30) if you
experience problems with time calibration signal reception.
E-20
Your Home City
HKG
Standard Time and
BJS
Daylight Saving Time
TPE
Standard Time
SEL
TYO
HNL
Standard Time and
ANC
Daylight Saving Time
YVR
LAX
YEA
DEN
MEX
CHI
NYC
YHZ
YYT
E-22
About the Signal Strength Indicator
The signal strength indicator shows the strength of the calibration signal being
received. For best reception, be sure to keep the watch in a location where signal
strength is strongest. The signal strength indicator is displayed while an auto or
manual receive operation is in progress.
Signal strength indicator
1:00 am
Midnight
Midnight
RCVD indicator
Auto Receive Start Times
12 3456
2:00 am
3:00 am
4:00 am
5:00 am
1:00 am
2:00 am
3:00 am
4:00 am
5:00 am
1:00 am
2:00 am
3:00 am
4:00 am
5:00 am
*Next day
Weak
(Level 1)
Strong
(Level 3)
About Auto Receive
The watch receives the time calibration signal automatically up to 6 times a day
(5 times a day for the Chinese calibration signal). When any auto receive is
successful, the remaining auto receive operations are not performed. The reception
schedule (calibration times) depends on your currently selected Home City, and
whether standard time or Daylight Saving Time is selected for your Home City.
Your Home City
LIS
Standard Time
LON
Daylight Saving Time
MAD
Standard Time
PAR
Daylight Saving Time
ROM
BER
STO
Standard Time
ATH
Daylight Saving Time
Standard Time
MOW
Daylight Saving Time
Note
• When a calibration time is reached, the watch will receive the calibration signal only
if it is in either the Timekeeping Mode or World Time Mode. Reception is not
performed if a calibration time is reached while you are configuring settings.
• Auto receive of the calibration signal is designed to be performed early in the
morning, while you sleep (provided that the Timekeeping Mode time is set correctly).
Before going to bed for the night, remove the watch from your wrist, and put it in a
location where it can receive the signal easily.
• The watch receives the calibration signal for two to seven minutes everyday when
the time in the Timekeeping Mode reaches a calibration time. Do not perform any
button operation within seven minutes before or after the calibration times. Doing so
can interfere with correct calibration.
• Remember that reception of the calibration signal depends on the current time in the
Timekeeping Mode. The receive operation will be performed whenever the display
shows any one of the calibration times, regardless of whether or not the displayed
time actually is the correct time.
• Even in an area where signal strength is strong, it takes about 10 seconds for signal
reception to stabilize enough for the signal strength indicator to indicate signal
strength.
• Use the signal strength indicator as a guide for checking signal strength and for
finding the best location for the watch during signal receive operations.
• Following reception of the time calibration signal and calibration of the watch’s time
setting, the RCVD indicator will remain on the display in all modes. The RCVD
indicator will not be displayed if signal reception was unsuccessful or after you adjust
the current time setting manually.
• The RCVD indicator is displayed only when the watch is able to receive both time
and date data successfully. It does not appear when only time data is received.
• The RCVD indicator indicates that at least one of the auto calibration signal receive
operations was successful. Note, however, that the RCVD indicator disappears from
the display each day when the first auto receive operation of the day is performed.
12 3456
1:00 am
2:00 am
2:00 am
3:00 am
3:00 am
4:00 am
4:00 am
5:00 am
Auto Receive Start Times
3:00 am
2:00 am
4:00 am
3:00 am
4:00 am
3:00 am
5:00 am
4:00 am
4:00 am
5:00 am
5:00 am
Midnight*
5:00 am
Midnight*
Midnight*
1:00 am*
4:00 am
5:00 am
5:00 am
Midnight*
Midnight*
1:00 am*
1:00 am*
2:00 am*
5:00 am
Midnight*
Midnight*
1:00 am*
1:00 am*
2:00 am*
2:00 am*
3:00 am*
Midnight*
1:00 am*
1:00 am*
2:00 am*
2:00 am*
3:00 am*
3:00 am*
4:00 am*
E-21
E-23
E-24
To perform manual receive
Receiving
Receive successful
E-26
To turn auto receive on and off
On/Off status
E-28
1. Enter the Timekeeping Mode (page E-8).
2. Hold down D for about two seconds until RCVD starts
to flash on the display. This indicates that manual
receive is in progress.
• Time calibration signal reception takes from two to
• If the receive operation is successful, the reception
3. After manual receive is complete, press D to return to
normal timekeeping.
• The watch also will return to normal timekeeping if you
do not perform any button operation for about one or
two minutes.
1. In the Timekeeping Mode, press D to display the last
successful receive time and date screen (page E-29).
2. Hold down A until the current auto receive setting (ON
or OFF) starts to flash. This is the setting screen.
• Note that the setting screen will not appear if the
3. Press D to toggle auto receive on (ON) and off
(OFF).
4. Press A to exit the setting screen.
• For information about city codes that support signal
receive, see “To specify your Home City” (page E-12).
seven minutes. Take care that you do not perform
any button operations or move the watch during this
time.
date and time appear on the display, along with the
GET indicator.
currently selected Home City is one that does not
support time calibration reception.
Receive failed
If there was a previously
successful reception
If no reception was
successful
To check the latest signal reception results
• If the latest reception fails but a previous reception was
successful, an indicator (RCVD) will be on the display.
• The watch will return to normal timekeeping without
changing the time setting if you press D or if you do not
perform any button operation for about one or two
minutes.
Note
• To interrupt a receive operation and return to normal
timekeeping, press D.
Press D to view the last successful receive time and
date. Press D again to return to the previous screen.
E-25
E-27
E-29
Page 4
Operation Guide 3268
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
Problem Probable Cause
Cannot perform
manual receive.
Auto receive is
turned on, but
the RCVD
indicator does
not appear on
the display.
E-30
Time setting
is incorrect
following
signal
reception.
• For further information, see “Important!” (page E-15) and “Radio-controlled Atomic
Timekeeping Precautions” (page E-69).
E-32
• All of the operations in this section are performed in the World Time Mode, which
you enter by pressing C (page E-9).
To view the time in another city
While in the World Time Mode, use the D (eastward) and B (westward) to scroll
through the city codes (time zones).
• Pressing the D and B at the same time will jump to the UTC time zone.
• The watch is not in the
Timekeeping Mode.
• Your current Home City is not
one of the following: LIS, LON,
MAD, PA R, ROM, BER, STO,
ATH, MOW, HKG, BJS, TPE,
SEL, TYO, HNL, ANC, YVR,
LAX, YEA, DEN, MEX, CHI,
NYC, YHZ, or YYT
• You changed the time setting
manually.
• The DST setting was changed
manually in the World Time
Mode.
• You pressed a button while
signal receive was in progress.
• If the time is one hour off, the
DST setting may be incorrect.
• The Home City code setting is
not correct for the area where
you are using the watch.
What you should do
• Enter the Timekeeping Mode
and try again.
• Select LIS, LON, MAD, PAR ,
ROM, BER, STO, ATH , MOW,
HKG, BJS, TPE, SEL, TYO,
HNL, ANC, YVR, LAX, YEA,
DEN, MEX, CHI, NYC, YHZ,
or YYT as your Home City
(page E-12).
• Perform manual signal receive
or wait until the next auto
signal receive operation is
performed.
What you should doProblem Probable Cause
• Change the DST setting to
Auto DST (page E-63).
• Select the correct Home City
code (page E-12).
What you should doProblem Probable Cause
Auto receive is
turned on, but
the RCVD
indicator does
not appear on
the display.
• Even if receive is successful,
the RCVD indicator will
disappear from the display each
day when the first auto receive
operation of the day is
performed.
• Time data (hour, minutes,
seconds) only was received
during the last receive
operation. The RCVD indicator
appears only when time data
and date data (year, month,
day) are both received.
• Check to make sure the watch
is in a location where it can
receive the signal (page E-15).
World Time
City code
Current time in
selected city
To toggle a city code time between Standard Time and Daylight Saving Time
DST indicator
World Time shows the current time in 48 cities (31 time
zones) around the world.
• The times kept in the World Time Mode are
synchronized with the time being kept in the
Timekeeping Mode. If you feel that there is an error in
any World Time Mode time, check to make sure you
have the correct city selected as your Home City. Also
check to make sure that the current time as shown in
the Timekeeping Mode is correct.
• Select a city code in the World Time Mode to display the
current time in any particular time zone around the
globe. See the “City Code Table” at the back of this
manual for information about the UTC differential
settings that are supported.
1. In the World Time Mode, use D and B to display the
city code (time zone) whose Standard Time/Daylight
Saving Time setting you want to change.
2. Hold down A to toggle between Daylight Saving Time
(DST indicator displayed) and Standard Time (DST
indicator not displayed).
• The DST indicator is shown on the World Time Mode
screen while Daylight Saving Time is turned on.
• Note that the Standard Time/Daylight Saving Time
setting affects only the currently displayed city code.
Other city codes are not affected.
• Note that you cannot switch between Standard Time
and Daylight Saving Time while UTC is selected as the
city code.
E-31
E-33
E-34
Alarms
Alarm number
Alarm time
(Hour : Minutes)
E-36
Alarm Operation
The alarm tone sounds at the preset time for 10 seconds, regardless of the mode the
watch is in. In the case of the snooze alarm, the alarm operation is performed a total
of seven times, every five minutes, until you turn the alarm off (page E-39).
• Alarm and Hourly Time Signal operations are performed in accordance with the
Timekeeping Mode time.
• To stop the alarm tone after it starts to sound, press any button.
• Performing any one of the operations below during a 5-minute interval between
snooze alarms cancels the current snooze alarm operation.
Displaying the Timekeeping Mode setting screen (page E-59)
Displaying the
To test the alarm
In the Alarm Mode, hold down D to sound the alarm.
E-38
The Alarm Mode gives you a choice of four one-time
alarms and one snooze alarm.
Also use the Alarm Mode to turn the Hourly Time Signal
(
SIG) on and off.
• There are five alarm screens numbered
AL3 and AL4 for the one-time alarm, and a snooze
alarm screen indicated by
Signal screen is indicated by
• All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C (page
E-9).
SNZ
setting screen (page E-37)
SNZ. The Hourly Time
AL1, AL2,
SIG.
To set an alarm time
• To set a one-time alarm, display alarm screen AL1, AL2, AL3 or AL4.
To set the snooze alarm, display the
• The snooze alarm repeats every five minutes.
2. After you select an alarm, hold down A until the hour setting of the alarm time
starts to flash, which indicates the setting screen.
• This operation turns on the alarm automatically.
3. Press C to move the flashing between the hour and minute settings.
4. While a setting is flashing, use D (+) and B (–) to change it.
• With the 12-hour format, set the time correctly as a.m. or p.m. (P indicator).
5. Press A to exit the setting screen.
To turn an alarm on and off
Snooze alarm indicator
1. In the Alarm Mode, use D to scroll through the alarm
screens until the one whose time you want to set is
displayed.
SNZ screen.
1. In the Alarm Mode, use D to select an alarm.
2. Press B to toggle it on and off.
Alarm on
• Turning on a alarm (
indicator
ON
SNZ) displays the alarm on indicator on its Alarm Mode
screen.
• In all modes, the alarm on indicator is shown for any
alarm that currently is turned on.
• The alarm on indicator flashes while the alarm is
sounding.
• The snooze alarm indicator flashes while the snooze
alarm is sounding and during the 5-minute intervals
between alarms.
AL1, AL2, AL3, AL4 or
E-35
E-37
E-39
Page 5
Operation Guide 3268
To turn the Hourly Time Signal on and off
Hourly time signal
on indicator
E-40
1. In the Alarm Mode, use D to select the Hourly Time
Signal (
SIG).
2. Press B to toggle it on and off.
• The Hourly Time Signal on indicator is shown on the
display in all modes while this function is turned on.
To measure times with the stopwatch
Elapsed Time
D
Start
Split Time
D
Start
Two Finishes
D
Start
E-42
D
➤➤➤
Stop Re-start Stop
B
➤➤➤
Split
(SPL displayed)
B
➤➤➤
Split
First runner finishes.
Display time of first
runner.
To configure the countdown timer
3. When the setting you want to change is flashing, use D and B to change it as
described below.
E-44
DD
B
Split release Stop
D
Stop
Second runner
finishes.
1. While the countdown start time is on the display in the
Countdown Timer Mode, hold down A until the current
countdown start time starts to flash, which indicates the
setting screen.
• If the countdown start time is not displayed, use the
procedure under “To use the countdown timer” (page
E-45) to display it.
2. Press C to move the flashing in the sequence shown
below to select other settings.
Hours Minutes
D
B
Split release
Display time of
second runner.
C
➤
➤
➤
B
Clear
B
Clear
B
Clear
Stopwatch
The stopwatch lets you measure elapsed time, split times,
Hours
and two finishes.
• The display range of the stopwatch is 23 hours, 59
minutes, 59.99 seconds.
• The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
• The stopwatch measurement operation continues even
if you exit the Stopwatch Mode.
• Exiting the Stopwatch Mode while a split time is frozen
Minutes
Seconds
1/100 second
on the display clears the split time and returns to
elapsed time measurement.
• All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C (page
E-9).
Countdown Timer
You can set the countdown timer within a range of one
minute to 24 hours. An alarm sounds when the countdown
reaches zero.
• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
C (page E-9).
Hours
Minutes
Seconds
Setting
Hours, Minutes
• To specify a countdown start time of 24 hours, set .
4. Press A to exit the setting screen.
To use the countdown timer
Timer start time
Current timer time
Countdown End Beeper
The countdown end beeper lets you know when the
countdown reaches zero. The beeper stops after about 10
seconds or when you press any button.
Screen
Use D (+) and B (–) to change the setting.
Press D while in the Countdown Timer Mode to start the
countdown timer.
• The countdown timer operation continues even if you
exit the Countdown Timer Mode.
• Press D while a countdown operation is in progress to
pause it. Press D again to resume the countdown.
• To stop a countdown operation completely, first pause it
(by pressing D), and then press B. This returns the
countdown time to its starting value.
Button Operation
E-41
E-43
E-45
Illumination
Auto light switch
on indicator
E-46
About the Auto Light Switch
Turning on the auto light switch causes illumination to turn on, whenever you position
your wrist as described below in any mode. Note that this watch features a “Full Auto
EL Light,” so the auto light switch operates only when available light is below a certain
level. It does not turn on the backlight under bright light.
Moving the watch to a position that is parallel to the ground and then tilting it towards
you more than 40 degrees causes illumination to turn on.
• Wear the watch on the outside of your wrist.
E-48
This watch has an EL (electro-luminescent) panel that
causes the entire display to glow for easy reading in the
dark. The watch’s auto light switch turns on illumination
automatically when you angle the watch towards your
face.
• The auto light switch must be turned on (indicated by
the auto light switch on indicator) for it to operate.
• See “Illumination Precautions” (page E-73) for other
important information about using illumination.
To illuminate the display manually
In any mode, press L to turn on illumination.
• The above operation turns on illumination regardless of
the current auto light switch setting.
Parallel to
ground
More than 40°
• You can use the procedure below to select either 1.5 seconds or 3 seconds as the
illumination duration. When you press L, the illumination will remain on for about
1.5 seconds or 3 seconds, depending on the current illumination duration setting.
To specify the illumination duration
Warning!
••
• Always make sure you are in a safe place whenever you are reading the
••
display of the watch using the auto light switch. Be especially careful when
running or engaged in any other activity that can result in accident or injury.
Also take care that sudden illumination by the auto light switch does not
startle or distract others around you.
••
• When you are wearing the watch, make sure that its auto light switch is
••
turned off before riding a bicycle or operating a motorcycle or any other
motor vehicle. Sudden and unintended operation of the auto light switch can
create a distraction, which can result in a traffic accident and serious
personal injury.
To turn the auto light switch on and off
In the Timekeeping Mode, hold down L for about three seconds to toggle the auto
light switch on (auto light switch on indicator displayed) and off (auto light switch on
indicator not displayed).
• The auto light switch on indicator is on the display in all modes while the auto light
switch is turned on.
1. In the Timekeeping Mode, hold down A until the
display contents start to flash. This is the setting screen.
2. Press C 10 times until the current illumination duration
setting (
3. Press D to toggle the setting between
(approximately 1.5 seconds) and (approximately
3 seconds).
4. Press A to exit the setting screen.
or ) appears.
E-47
E-49
Page 6
Operation Guide 3268
Power Supply
This watch is equipped with a solar cell and a rechargeable battery that is charged by
the electrical power produced by the solar cell. The illustration shown below shows
how you should position the watch for charging.
Example: Orient the watch so its face is
pointing at a light source.
• The illustration shows how to position a
watch with a resin band.
• Note that charging efficiency drops when
any part of the solar cell is blocked by
clothing, etc.
• You should try to keep the watch outside of
your sleeve as much as possible. Charging
is reduced significantly if the face is
covered only partially.
E-50
Battery Power Indicator and Recover Indicator
The battery power indicator on the display shows you the current status of the
rechargeable battery’s power.
Battery power
indicator
E-52
Recover indicator
Level
Battery Power Indicator
1
2
3
4
5
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
(Charge Soon Alert)
• Performing illumination, or beeper operations during a
short period may cause
the display. Illumination, alarm, countdown timer alarm
and hourly time signal will be disabled until battery
power recovers.
After some time, battery power will recover and
(recover) will disappear, indicating that the above
functions are enabled again.
• If
(recover) appears frequently, it probably
means that remaining battery power is low. Leave the
watch in bright light to allow it to charge.
Solar cell
Function Status
All functions enabled.
All functions enabled.
Auto and manual receive,
illumination, and beeper
disabled.
Except for timekeeping and
the CHG (charge) indicator,
all functions and display
indicators disabled.
All functions disabled.
(recover) to appear on
Important!
• 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 rechargeable battery
power to run down. Be sure that the watch is exposed to bright light whenever
possible.
• This watch uses a rechargeable battery to store power produced by the solar cell, so
regular battery replacement is not required. However, after very long use, the
rechargeable battery may lose its ability to achieve a full charge. If you experience
problems getting the rechargeable battery to charge fully, contact your dealer or
CASIO distributor about having it replaced.
• Never try to remove or replace the watch’s rechargeable battery yourself. Use of the
wrong type of battery can damage the watch.
• All data stored in memory is deleted, and the current time and all other settings
return to their initial factory defaults whenever battery power drops to Level 5 (pages
E-52 and E-53) and when you have the battery replaced.
• Turn on the watch’s Power Saving function (page E-67) and keep it in an area
normally exposed to bright light when storing it for long periods. This helps to keep
the rechargeable battery from going dead.
E-51
• The flashing LOW indicator at Level 3 tells you that battery power is very low, and
that exposure to bright light for charging is required as soon as possible.
• At Level 5, all functions are disabled and settings return to their initial factory
defaults. Once the battery reaches Level 2 after falling to Level 5, reconfigure the
current time, date, and other settings.
• The watch’s Home City code setting will change automatically to TYO (Tokyo)
whenever the battery drops to Level 5. With this Home City code setting, the watch is
configured to receive the time calibration signals of Japan. If you are using the watch
in North America or Europe, or China you will need to change the Home City code
setting to match your location whenever the battery drops to Level 5.
•
Display indicators reappear as soon as the battery is charged from Level 5 to Level 2.
• Leaving the watch exposed to direct sunlight or some other very strong light source
can cause the battery power indicator to show a reading temporarily that is higher
than the actual battery level. The correct battery level should be indicated after a few
minutes.
E-53
Charging Precautions
Certain charging conditions can cause the watch to become very hot. Avoid leaving
the watch in the areas described below whenever charging its rechargeable battery.
Also note that allowing the watch to become very hot can cause its liquid crystal
display to black out. The appearance of the LCD should become normal again when
the watch returns to a lower temperature.
Warning!
Leaving the watch in bright light to charge its rechargeable battery 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
E-54
Charging Guide
The following table shows the amount of time the watch needs to be exposed to light
each day in order to generate enough power for normal daily operations.
Exposure Level (Brightness)
Outdoor Sunlight (50,000 lux)
Sunlight Through a Window (10,000 lux)
Daylight Through a Window on a Cloudy Day (5,000 lux)
Indoor Fluorescent Lighting (500 lux)
• For details about the battery operating time and daily operating conditions, see the
“Power Supply” section of the Specifications (page E-77).
• Stable operation is promoted by frequent exposure to light.
E-56
Approximate
Exposure Time
5 minutes
24 minutes
48 minutes
8 hours
Timekeeping
Current Time
Day of week
PM
indicator
▲
Dual Time
E-58
Month – Day
Hour : Minutes
Seconds
▲
BB
Dual timeCity code
Press the B button to toggle the lower display between
the day of the week and date, and the currently selected
World Time city and time (Dual Time).
Use the Timekeeping Mode to set and view the current
time and date.
Read This Before You Set the Time and Date!
This watch is preset with a number of city codes, each of
which represents the time zone where that city is located.
When setting the time, it is important that you first select
the correct city code for your Home City (the city where
you normally use the watch). If your location is not
included in the preset city codes, select the preset city
code that is in the same time zone as your location.
• Note that all of the times for the World Time Mode city
codes (page E-33) are displayed in accordance with the
time and date settings you configure in the Timekeeping
Mode.
Recovery Times
The table below shows the amount exposure that is required to take the battery from
one level to the next.
Exposure Level
(Brightness)
Outdoor Sunlight
(50,000 lux)
Sunlight Through a
Window (10,000 lux)
Daylight Through a
Window on a Cloudy
Day (5,000 lux)
Indoor Fluorescent
Lighting (500 lux)
• The above exposure time values are all for reference only. Actual required exposure
times depend on lighting conditions.
To set the time and date manually
3. Press C to move the flashing in the sequence shown below to select the other
settings.
City Code
Approximate Exposure Time
Level 5 Level 4 Level 3 Level 2 Level 1
▲
3 hours 33 hours 9 hours
10 hours 125 hours 34 hours
15 hours 202 hours 54 hours
173 hours - - - - - - - - - - - - - - - -
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Use D and B to select the city code you want.
• Make sure you select your Home City code before
changing any other setting.
• For full information on city codes, see the “City Code
Table” at the back of this manual.
12/24-Hour
DST
Illumination
Duration
Format
Seconds
Button
Operation Tone
Hour
DayPower Saving
Month
▲
Minutes
Year
E-55
▲
E-57
E-59
Page 7
Operation Guide 3268
• The following steps explain how to configure timekeeping settings only.
4. When the timekeeping setting you want to change is flashing, use D or B to
change it as described below.
Screen: To do this: Do this:
E-60
12-hour and 24-hour timekeeping
• With the 12-hour format, the P (PM) indicator appears to the left of the hour digits for
times in the range of noon to 11:59 p.m. and no indicator appears to the left of the
hour digits for times in the range of midnight to 11:59 a.m.
• With the 24-hour format, times are displayed in the range of 0:00 to 23:59, without
any indicator.
• The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is
applied in all other modes.
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 Mainflingen (Germany), Anthorn
(England), or Fort Collins (the United States) include both Standard Time and DST
data. When the Auto DST setting is turned on, the watch switches between Standard
Time and DST (summer time) automatically in accordance with the signals.
E-62
• If you change your Home City to one that is within the same transmitter area, the
current DST setting will be retained. If you change to a city that is outside your
current transmitter area, DST will be turned off automatically.
Transmitter
Japan
China
U.S.
Europe (U.K., Germany)
None
4. When the setting you want is selected, press A to exit the setting screen.
• The DST indicator appears to indicate that Daylight Saving Time is turned on.
E-64
Change the city code
Cycle between Auto DST (
Saving Time (
(OFF).
Toggle between 12-hour ( ) and 24hour ( ) timekeeping
Reset the seconds to
Change the hour and minutes
ON) and Standard Time
Covered City Codes
TPE, SEL, TYO
HKG, BJS
HNL, ANC,YVR, LAX, YEA,DEN, MEX, CHI, NYC,YHZ, YYT
LIS, LON, MAD, PAR , ROM, BER, STO, ATH, MOW
All other city codes
AvtA), Daylight
Use D (east) and B
(west).
Press D.
Press D.
Press D.
Use D (+) and B (–).
Screen: To do this: Do this:
5. Press A to exit the setting screen.
• Auto DST (
STO, ATH, MOW, TPE, SEL, TYO, HNL, ANC, YVR, LAX, YEA, DEN, MEX, CHI,
NYC, YHZ, or YYT is selected as the Home City code. For more information, see
“Daylight Saving Time (DST)” (page E-62).
• The day of the week is displayed automatically in accordance with the date (year,
month, and day) settings.
• Though the time calibration signals transmitted by the Fukushima and Fukuoka/
Saga, Japan transmitters include summer time data, summer time currently is not
implemented in Japan (as of 2010).
• The default DST setting is Auto DST (
PAR , ROM, BER, STO, ATH, MOW, TYO, ANC, YVR, LAX, YEA, DEN, MEX, CHI,
NYC, YHZ, or YYT as your Home City code.
• If you experience problems receiving the time calibration signal in your area, it
probably is best to switch between Standard Time and Daylight Saving Time
(summer time) manually.
To change the Daylight Saving Time (summer time) setting
Change the year, month, or day
Toggle the button operation tone between
/
DST indicator
(on) and (off)
Toggle the illumination duration between
(approximately 1.5 seconds) and
(approximately 3 seconds).
Toggle between Power Saving on (
off ( )
AvtA) can be selected only while LIS, LON, MAD, PAR , ROM, BER,
AvtA) whenever you select LIS, LON, MAD,
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press C and the DST setting screen appears.
3. Use D to cycle through the DST settings in the
sequence shown below.
Auto DST (
AvtA
) DST off (
Use D (+) and B (–).
Press D.
Press D.
) and
Press D.
) DST on (ON)
OFF
Reference
This section contains more detailed and technical information about watch operation.
It also contains important precautions and notes about the various features and
functions of this watch.
Graphic Area
The information shown in the graphic area depends on the current mode.
Graphic Area
Mode
Timekeeping Mode
World Time Mode
Alarm Mode
Stopwatch Mode
CountdownTimer Mode
Graphic Area
Timekeeping Mode seconds
Timekeeping Mode seconds
Rotates when the time is
reached
Stopwatch Mode 1/10 seconds
CountdownTimer Mode seconds
E-61
E-63
E-65
Button Operation Tone
MUTE indicator
To turn the button operation tone on and off
E-66
• The watch will not enter the sleep state between 6:00 AM and 9:59 PM. If the watch
is already in the sleep state when 6:00 AM arrives, however, it will remain in the
sleep state.
To recover from the sleep state
Perform any one of the following operations.
• Move the watch to a well-lit area.
• Press any button.
• Angle the watch towards your face for reading (page E-48).
To turn Power Saving on and off
On/Off status
E-68
The button operation tone sounds any time you press one
of the watch’s buttons. You can turn the button operation
tone on or off as desired.
• Even if you turn off the button operation tone, alarms,
the Hourly Time Signal, and other beepers all operate
normally.
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press C nine times until the current button operation
tone setting (
3. Press D to toggle the setting between
and
4. Press A to exit the setting screen.
• The MUTE indicator is displayed in all modes when the
button operation tone is turned off.
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
2. Press C 11 times until the Power Saving on/off screen
appears.
3. Press D to toggle Power Saving on (
4. Press A to exit the setting screen.
• The Power Saving indicator is on the display in all
modes while Power Saving is turned on.
(tone off).
or ) appears.
(tone on)
) and off ( ).
Power Saving Function
Power saving indicator
Elapsed Time
in Dark
60 to 70 minutes
6 or 7 days
• Wearing the watch inside the sleeve of clothing can cause it to enter the sleep state.
Radio-controlled Atomic Timekeeping Precautions
• Strong electrostatic charge can result in the wrong time being set.
• The time calibration signal bounces off the ionosphere. Because of this, such factors
as changes in the reflectivity of the ionosphere, as well as movement of the
ionosphere to higher altitudes due to seasonal atmospheric changes or the time of
day may change the reception range of the signal and make reception temporarily
impossible.
• Even if the time calibration signal is received properly, certain conditions can cause
the time setting to be off by up to one second.
• The current time setting in accordance with the time calibration signal takes priority
over any time settings you make manually.
• The watch is designed to update the date and day of the week automatically for the
period January 1, 2000 to December 31, 2099. Setting of the date by the time
calibration signal cannot be performed starting from January 1, 2100.
• This watch can receive signals that differentiate between leap years and non-leap
years.
• Though this watch is designed to receive both time data (hour, minutes, seconds)
and date data (year, month, day), certain signal conditions can limit reception to time
data only.
When turned on, the Power Saving function enters a
sleep state automatically whenever the watch is left in an
area for a certain period where it is dark. The table below
shows how watch functions are affected by the Power
Saving function.
Display
Blank, with Power Saving
indicator flashing
Blank, with Power Saving
indicator not flashing
All functions enabled, except for the
display
Auto receive, beeper tone,
illumination, and display are disabled.
Operation
E-67
E-69
Page 8
Operation Guide 3268
• If you are in an area where proper time calibration signal reception is impossible, the
watch keeps the time with the precision noted in “Specifications” (page E-75).
• If you have problems with proper time calibration signal reception or if the time
setting is wrong after signal reception, check your current city code, DST (summer
time) (page E-59), and auto receive settings (page E-28).
• The Home City setting reverts to the initial default of
battery power level drops to Level 5 or when you have the rechargeable battery
replaced. If this happens, change the Home City to the setting you want (page E-12).
Transmitters
The time calibration signal received by this watch depends on the currently selected
Home City code (page E-12).
• When a U.S. time zone is selected, the watch receives the time calibration signal
transmitted from the United States (Fort Collins).
• When a Japanese time zone is selected, the watch receives the time calibration
signal transmitted from Japan (Fukushima and Fukuoka/Saga).
• When a European time zone is selected, the watch receives the time calibration
signals transmitted from Germany (Mainflingen) and England (Anthorn).
E-70
Initial Screens
When you enter the World Time Mode or Alarm Mode, the data you were viewing
when you last exited the mode appears first.
Timekeeping
• Resetting the seconds to 00 while the current count is in the range of 30 to 59
causes the minutes to be increased by 1. In the range of 00 to 29, the seconds are
reset to 00 without changing the minutes.
• The year can be set in the range of 2000 to 2099.
• 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 battery replaced.
• The current time for all city codes in the Timekeeping Mode and World Time Mode is
calculated in accordance with the Coordinated Universal Time (UTC) for each city,
based on your Home City time setting.
E-72
More than 15 degrees
too high
• Static electricity or magnetic force can interfere with proper operation of the auto
light switch. If illumination does not turn on, try moving the watch back to the starting
position (parallel with the ground) and then tilt it back toward you again. If this does
not work, drop your arm all the way down so it hangs at your side, and then bring it
back up again.
• Under certain conditions, illumination may not turn on until about one second after
you turn the face of the watch towards you. This does not necessarily indicate
malfunction of the auto light switch.
• You may notice a very faint clicking sound coming from the watch when it is shaken
back and forth. This sound is caused by mechanical operation of the auto light
switch, and does not indicate a problem with the watch.
E-74
• Illumination may not turn on if the face of the watch is
more than 15 degrees above or below parallel. Make
sure that the back of your hand is parallel to the ground.
• Illumination turns off after a preset amount of time (1.5
or 3 seconds), even if you keep the watch pointed
towards your face.
TYO (Tokyo) whenever the
• When a China time zone is selected, the watch receives the time calibration signals
transmitted from China (Shangqiu City).
• When your Home City is LIS, LON, MAD, PAR , ROM, BER, STO, ATH, MOW
(which can receive both the Anthorn and Mainflingen signals), the watch first tries to
pick up the signal it last successfully received. If that fails, it tries the other signal. For
the first receive after you select your Home City, the watch tries the nearest signal
first (Anthorn for LIS, LON, Mainflingen for MAD, PAR, ROM, BER, STO, ATH, and
MOW).
Auto Return
If you do not perform any operation for about two or three minutes while a setting
screen (with a flashing setting) is on the display, the watch will exit the setting screen
automatically.
Scrolling
The B and D are used in various modes and setting screens to scroll through data
on the display. In most cases, holding down these buttons during a scroll operation
scrolls at high speed.
E-71
World Time
The seconds count of the World Time is synchronized with the seconds count of the
Timekeeping Mode.
Illumination Precautions
• The electro-luminescent panel that provides illumination loses power after very long
use.
• Illumination may be difficult to see when viewed under direct sunlight.
• The watch may emit an audible sound whenever the display is illuminated. This is
due to vibration of the EL panel used for illumination, and does not indicate
malfunction.
• Illumination turns off automatically whenever an alarm sounds.
• Frequent use of illumination runs down the battery.
Auto light switch precautions
• Avoid wearing the watch on the inside of your wrist. Doing so causes the auto light
switch to operate when it is not needed, which shortens battery life. If you want to
wear the watch on the inside of your wrist, turn off the auto light switch feature.
E-73
Specifications
Accuracy at normal temperature: ± 15 seconds a month (with no signal calibration)
Timekeeping: Hour, minutes, seconds, p.m. (P), month, day, day of the week
Time format: 12-hour and 24-hour
Calendar system: Full Auto-calendar pre-programmed from the year 2000 to 2099
Other: Home City code (can be assigned one of 48 city codes); Standard Time /
Daylight Saving Time (summer time)
Time Calibration Signal Reception: Auto receive 6 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); Fort Collins, Colorado, the United States (Call Sign: WWVB, Frequency:
60.0 kHz); Fukushima, Japan (Call Sign: JJY, Frequency: 40.0 kHz); Fukuoka/
Saga, Japan (Call Sign: JJY, Frequency: 60.0 kHz); Shangqiu City, Henan
Province, China (Call Sign: BPC, Frequency: 68.5 kHz)
E-75
World Time: 48 cities (31 time zones)
Other: Daylight Saving Time/Standard Time
Alarms: 5 daily alarms (four one-time alarms; one snooze alarm); Hourly Time Signal
Stopwatch:
Measuring unit: 1/100 second
Measuring capacity: 23:59' 59.99''
Measuring modes: Elapsed time, split time, two finishes
Countdown Timer:
Measuring unit: 1 second
Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
Illumination: EL (electro-luminescent panel); Full Auto Light Switch; Selectable
illumination duration
Other: Button operation tone on/off
E-76
City Code Table
City
City
Code
Pago Pago
PPG
Honolulu
HNL
Anchorage
ANC
Vancouver
YVR
Los Angeles
LAX
Edmonton
YEA
Denver
DEN
Mexico City
MEX
Chicago
CHI
New York
NYC
Santiago
SCL
Halifax
YHZ
St. Johns
YYT
L
UTC Offset/
GMT Differential
–11
–10
–9
–8
–7
–6
–5
–4
–3.5
City
Code
RIO
Rio De Janeiro
FEN
Fernando de Noronha
RAI
UTC
LIS
LON
MAD
PAR
ROM
BER
STO
ATH
CAI
JRS
City
Praia
Lisbon
London
Madrid
Pari s
Rome
Berlin
Stockholm
Athens
Cairo
Jerusalem
UTC Offset/
GMT Differential
–3
–2
–1
0
+1
+2
Power Supply: Solar cell and one rechargeable battery
Approximate battery operating time: 10 months (from full charge to Level 4) under
the following conditions:
• Watch not exposed to light
• Internal timekeeping
• Display on 18 hours per day, sleep state 6 hours per day
• 1 illumination operation (1.5 second) per day
• 10 seconds of alarm operation per day
• Approximately 4 minutes of signal reception per day
City
City
Code
MOW
Moscow
JED
Jeddah
THR
Teh r a n
DXB
Dubai
KBL
Kabul
KHI
Karachi
DEL
Delhi
KTM
Kathmandu
DAC
Dhaka
RGN
Yangon
BKK
Bangkok
• Based on data as of December 2010.
• The rules governing global times (UTC offset and GMT differential) and summer
time are determined by each individual country.
UTC Offset/
GMT Differential
+3
+3.5
+4
+4.5
+5
+5.5
+5.75
+6
+6.5
+7
City
Code
SIN
HKG
BJS
TPE
SEL
TYO
ADL
GUM
SYD
NOU
WLG
City
Singapore
Hong Kong
Beijing
Taipei
Seoul
Tok yo
Adelaide
Guam
Sydney
Noumea
Wellington
UTC Offset/
GMT Differential
+8
+9
+9.5
+10
+11
+12
E-77
L-1
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