Congratulations upon your selection of this CASIO watch. To get the most out of your
purchase, be sure to read this manual carefully.
Keep the watch exposed to bright light
Bright Light
Solar panel
E
• 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 50 minutes exposure to indoor fl uorescent lighting
Be sure to read “Power Supply” (page E-51) 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-60) 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-2
The electricity generated by the solar panel of the watch
is stored by a built-in battery. Leaving or using the 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 signifi cantly
if the face is only partially covered.
Type A
Type B
ENGLISH
• 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-confi gure 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 panel
(Converts light to
electrical power.)
About This Manual
• This watch is available with either of two display types: Type A and Type B. All of
the examples in this manual show Type A (no graphics). If your watch has a Type B
display (with graphics), graphic fi gures will appear and disappear timed with the
seconds count.
• Depending on the model of your watch, display text appears either as dark fi gures
on a light background, or light fi gures on a dark background. All sample displays in
this manual are shown using dark fi gures 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.
To specify your Home City …………………………………………………… E-12
To perform manual receive ……………………………………………………E-25
To turn auto receive on and off ………………………………………………E-26
To check the latest signal reception results …………………………………E-27
World Time ………………………………………………………………………………E-29
To view the time in another city ………………………………………………E-30
To toggle a city code time between Standard Time
and Daylight Saving Time …………………………………………………E-30
To swap your Home City and World Time City ………………………………E-32
E-1
E-3
E-4
Countdown Timer………………………………………………………………………E-33
To set the countdown start time ………………………………………………E-34
To use the countdown timer ……………………………………………………E-34
Stopwatch ………………………………………………………………………………E-35
To measure times with the stopwatch ……………………………………… E-36
Alarm ……………………………………………………………………………………E-37
To set the alarm time ……………………………………………………………E-38
To turn the alarm and the Hourly Time Signal on and off …………………E-39
Illumination ……………………………………………………………………………E-40
To turn on illumination …………………………………………………………E-40
Timekeeping ……………………………………………………………………………E-41
To set the current digital time and date manually ……………………………E-43
To change the Daylight Saving Time (summer time) setting ………………E-47
E-6
Graphic
General Guide
• Press & to change from mode to mode.
• In any mode (except when a setting screen is on the display), press % to illuminate
the face of the watch.
Timekeeping Mode
Battery Level Indicator
Press&.
E-8
World Time Mode
&
E-5
Adjusting Home Positions ……………………………………………………………E-49
To adjust home positions ………………………………………………………E-49
Power Supply ………………………………………………………………………… E-51
To check the current battery level ……………………………………………E-53
Reference ………………………………………………………………………………E-60
To recover from the sleep state ………………………………………………E-61
To turn Power Saving on and off ………………………………………………E-62
Specifi cations …………………………………………………………………………E-69
E-7
Countdown Timer ModeStopwatch Mode
&
&
&
Alarm Mode
&
E-9
Operation Guide 5133
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 (Mainfl ingen), 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 fi rst 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-41) for more information about manual time settings.
E-10
To specify your Home City
City code
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-25).
1. In the Timekeeping Mode, hold down A for about two
seconds until the watch beeps and
display.
• This will cau se the currentl y selected cit y code to
fl a s h .
2. Press ' (east) and % (west) to select the city code
you want to use as your Home City.
LIS, LON : Lisbon, London
MAD, PAR, ROM, BER, STO :
Madrid, Pa ris, Rome, B erlin, Stoc kholm
ATH : Athens
MOW : Moscow
HKG, BJS , TPE : Hong Ko ng, Beijing, Taipei
SEL, TYO : Seoul, Tokyo
HNL : Honolulu
ANC : Ancho rage
YVR, LAX : Vancouver, Los Angeles
YEA, DEN : Ed monton, Denver
MEX, CHI : Mexico Cit y, Chicago
ADJ
appears on the
• 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.
• The analog time of this watch is synchronized with the digital time. Because of this,
the analog time setting is automatically adjusted whenever you change the digital
setting. See “Analog Timekeeping” (page E-48) for more information.
• As of June 2013, 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
NYC : New York
YHZ : H alifax
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-25) or you can set the time manually (page E-43).
• 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-65).
• 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-26 for more information.
• Under factory default settings, auto receive is turned off for all of the following city
MOW
codes:
turning on auto receive for these city codes, see “To turn auto receive on and off”
on page E-26.
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.
(Moscow),
HNL
(Honolulu), and
ANC
(Anchorage). For details about
12 o’clock
or
E-13
E-14
• Proper signal reception can be diffi cult or even impossible under the conditions
listed below.
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
Inside a
vehicle
Near
household
appliances,
offi ce
equipment, or
a mobile
phone
Near a
construction
site, airport, or
other sources
of electrical
noise
Near
high-tension
power lines
Among or
behind
mountains
Approximate Reception Ranges
U.K. and German Signals
1,500 kilometers
Anthorn
500 kilometers
The Anthorn signal
is receivable within
this area.
E-18
Mainflingen
North American Signal
2,000 miles
(3,000 kilometers)
600 miles
(1,000 kilometers)
Fort Collins
• Make sure the watch is facing the right way.
E-15
• The time calibration signal the watch will attempt to pick up depends on its current
Home City code setting as shown below.
Home City CodeTransmitterFrequency
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
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.
Japanese Signals
500 kilometers
Fukuoka/Saga
1,000 kilometers
Signals are receivable in the Taiwan area when reception conditions are good.
1,500 kilometers
Anthorn (England)60.0 kHz
Mainfl ingen (Germany)77.5 kHz
Shangqiu City (China)68.5 kHz
Fukushima (Japan)40.0 kHz
Fukuoka/Saga (Japan)60.0 kHz
Fort Collins, Colorado
(the United States)
HNL, ANC
MOW
, and
city codes are quite far from the
500 kilometers
Fukushima
1,000 kilometers
Chinese Signal
500 kilometers
Chengdu
Shangqiu
60.0 kHz
E-17
Changchun
Beijing
Shanghai
Hong Kong
E-19
Operation Guide 5133
• 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.
Mainfl ingen (Germany) or Anthorn (England) transmitters: 500 kilometers (310
miles)
Fort Collins (United States) transmitter: 600 miles (1,000 kilometers)
Fukushima or Fukuoka/Saga (Japan) transmitters: 500 kilometers (310 miles)
Shangqiu (China) transmitter: 500 kilometers (310 miles)
• 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-28) 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
1:00 am
Midnight
Midnight
Auto Receive Start Times
123456
2:00 am 3:00 am
1:00 am 2:00 am
1:00 am 2:00 am
4:00 am 5:00 am
3:00 am 4:00 am 5:00 am
3:00 am 4:00 am 5:00 am
*Next day
E-22
About the Receiving Indicator
The receiving indicator shows the strength of the calibration signal being received. For
best reception, be sure to keep the watch in a location where signal strength is
strongest. The receiving indicator is displayed while an auto or manual receive
operation is in progress.
Receiving indicator
WeakStrong
• Use the receiving indicator as a guide for checking signal strength and for fi nding
the best location for the watch during signal receive operations.
• Even in an area where signal strength is strong, it takes about 10 seconds for signal
reception to stabilize enough for the receiving indicator to indicate signal strength.
E-24
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
ATH Standard Time
Daylight Saving Time
MOW
Standard Time
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 confi guring 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.
To perform manual receive
Receiving
Receiving indicator
1:00 am
2:00 am
2:00 am
3:00 am
3:00 am
4:00 am
4:00 am
5:00 am
1. In the Timekeeping Mode, hold down D for about two
seconds.
• Time calib ration signal re ception take s from two to
seven minutes . Take care that you do not p erform
any button o perations or m ove the watch duri ng this
time.
• The watch will b eep when rece ive is success ful.
After the ti me setting i s corrected, it wi ll appear on
the display.
• If receive fails fo r some reaso n, ERR will appear on
the display and t he time set ting will not be ch anged.
2. To return to the Timekeeping Mode, press D or do not
perform any operation for one or two minutes.
Note
• To interrupt a receive operation and return to normal
timekeeping, press any button.
Auto Receive Start Times
123456
2:00 am
3:00 am
4:00 am
5:00 am
3:00 am
3:00 am
4:00 am
4:00 am
5:00 am
5:00 am
Midnight*
4:00 am
4:00 am
5:00 am
5:00 am
Midnight*
Midnight*
1:00 am*
5:00 am
5:00 am
Midnight*
Midnight*
1:00 am*
1:00 am*
2:00 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-25
To turn auto receive on and off
On/Off status
1. In the Timekeeping Mode, press D to display the Last
Signal screen (page E-27).
2. Hold down A until the current auto receive setting (
OFF
or
) start to fl ash. This is the setting screen.
• Note that the s etting scre en will not appe ar if the
currently sel ected Home C ity is one tha t does not
support t ime calibrati on reception.
3. Press D to toggle auto receive on (ON) and off (
OFF
4. Press A to exit the setting screen.
5. Press D to return to the Timekeeping Mode.
• For informa tion about ci ty codes th at support s ignal
receive, see “ To specify your H ome City ” (page
E-12).
E-26
Signal Reception Troubleshooting
Check the following points whenever you experience problems with signal reception.
ProblemProbable CauseWhat you should do
Cannot perform
manual receive.
Time setting is
incorrect
following signal
reception.
• For further information, see “Important!” (page E-15) and “Radio-controlled Atomic
correct for the area where you are
using the watch.
LIS,LON,MAD
YYT
, or
,
• Enter the Timekeeping Mode and
try again.
LIS,LON,MAD,PAR
• Select
ROM,BER,STO,ATH,MOW
,
HKG,BJS,TPE,SEL,TYO,HNL
ANC,YVR,LAX,YEA,DEN,MEX
,
CHI,NYC,YHZ
,
Home City (page E-12).
• Change the DST setting to Auto
DST (page E-47).
• Select the correct Home City code
(page E-12).
, or
YYT
as your
,
,
ON
To check the latest signal reception results
Receive date
).
Receive time
1. In the Timekeeping Mode, press D to display the Last
Signal screen.
• When recei ve is successf ul, the display s hows the
time and date th at receive was su ccessful. - - : - indicates tha t none of the rec eption operat ions were
successful.
2. To return to the Timekeeping Mode, press D or do not
perform any operation for one or two minutes.
E-27
World Time
City code
,
,
Current time in
selected city
The World Time Mode digitally displays the current time in
48 cities (31 time zones) around the world.
• If the current time shown for a city is wrong, check your
Home City time settings and make the necessary
changes (page E-43).
• The watch will perform a signal reception even if it is in
the World Time Mode when a calibration time is
reached. If this happens, the World Time Mode time
settings will be adjusted in accordance with the
Timekeeping Mode’s Home City time.
• All of the operations in this section are performed in the
World Time Mode, which you enter by pressing
(page E-8).
C
E-29
Operation Guide 5133
To view the time in another city
1. Press D.
• This will disp lay the currently s elected World T ime City co de. After abo ut two
seconds, t he display will ch ange to the curren t time in that cit y.
2. While the city code is displayed, press D to scroll to the next city code.
• For full infor mation on cit y codes, see the “City C ode Table” at the back of t his
manual.
To toggle a city code time between Standard Time and Daylight Saving Time
DST indicator
E-30
To swap your Home City and World Time City
E-32
To set the countdown start time
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 fl ash, which indicates
the setting screen.
• If the countd own start ti me is not displaye d, use the proce dure under “To use
the countdo wn timer” to dis play it.
1. In the World Time Mode, use D to display the city code
(time zone) whose Standard Time/Daylight Saving Time
setting you want to change.
2. Hold down A to toggle Daylight Saving Time (
indicator displayed) and Standard Time (
not displayed).
• The DST indicator w ill appear on th e display
whenever you di splay a city cod e for which Dayligh t
Saving Tim e is turned on.
1. In the World Time Mode, use D to select the World
Time City you want.
2. Hold down A and B at the same time until the watch
beeps.
• This will make t he World Time C ity (NYC in this
example) your new H ome City. At th e same time, i t
will change th e Home Cit y you had selecte d prior
to step 2 (TYO in this example) to your Worl d Time
City.
• After swapp ing the Home C ity and World T ime City,
the watch will stay i n the World Tim e Mode.
Note
• If your current World Time City supports time calibration
signal reception, your Home City enables calibration
signal reception for that city.
DST
DST
indicator
2. While a setting is fl ashing, use D (+) and B (–) to change it.
3. Press A to exit the setting screen.
To use the countdown timer
PressD while in the Countdown Timer Mode to start the countdown timer.
• When the end of the countdown is reached, the alarm sounds for 10 seconds or
until you stop it by pressing any button. The countdown time is automatically reset
to its starting value after the alarm stops.
• Press D while a countdown operation is in progress to pause it. Press ' again to
resume the countdown.
• To completely stop a countdown operation, fi rst pause it (by pressing '), and then
pressA. This returns the countdown time to its starting value.
E-34
• Note that the D ST/Stand ard Time set ting affects o nly the current ly displayed
city code. O ther cit y codes are not af fected.
Swapping your Home City and World Time City
You can use the procedure below to swap your Home City and World Time City. This
capability can come in handy when you frequently travel between two locations in
different time zones.
The following example shows what happens when the Home City and World Time
City are swapped while the Home City originally is
NYC
City is
(New York).
Before
swapping
After swapping
Home CityWorld Time City
Tokyo
10:08 p.m.
(Standard time)
New York
9:08 a.m.
(Daylight saving time)
TYO
(Tokyo) and the World Time
New York
9:08 a.m.
(Daylight saving time)
Tokyo
10:08 p.m.
(Standard time)
Countdown Timer
You can set the countdown timer within a range of one to
60 minutes. An alarm sounds when the countdown
reaches zero.
• Calibration signal reception (both auto and manual) is
disabled while a countdown timer operation is in
progress.
• All of the operations in this section are performed in the
Countdown Timer Mode, which you enter by pressing
(page E-9).
Minutes
Seconds
&
Stopwatch
The stopwatch lets you measure elapsed time, split times,
and two fi nishes.
• The display range of the stopwatch is 59 minutes, 59.99
seconds.
• The stopwatch continues to run, restarting from zero
after it reaches its limit, until you stop it.
• Exiting the Stopwatch Mode while a split time is frozen
on the display clears the split time and returns to
Minutes
Seconds
elapsed time measurement.
• The stopwatch measurement operation continues even
if you exit the Stopwatch Mode.
• All of the operations in this section are performed in the
Stopwatch Mode, which you enter by pressing C (page
E-9).
E-31
E-33
E-35
To measure times with the stopwatch
Elapsed Time
D
StartStopRe-startStopClear
• When elapsed time measurement is paused, the display alternates between a
minute/second screen and a 1/100 second screen at two-second intervals.
Split Time
D
StartSplitSplit releaseStopClear
• The split time screen cycles alternately through the split (
second screen, and a 1/100 second screen.
Two Finishes
D
StartSplit
E-36
To set the alarm time
Alarm time
(Hour : Minutes)
DDDA
AADA
SPL
) indicator , a minute/
ADAA
First runner fi nishes.
Display time of fi rst
runner.
Stop
Second runner
fi nishes.
1. In the Alarm Mode, press D to display the alarm
screen.
2. Hold down A until the hour setting of the alarm time
starts to fl ash, which indicates the setting screen.
• This operati on automatic ally turns on t he alarm.
3. Press C to move the fl ashing between the hour and
minute settings.
4. While a setting is fl ashing, use D (+) and B (–) to
change it.
• When set ting the alarm t ime using the 12- hour
format, take c are to set the time c orrectly as a.m . (no
indicator) or p.m . (P indicator).
Split release
Display time of
second runner.
Clear
5. Press A to exit the setting screen.
E-38
Alarm
On/Off status
2-second
intervals
Alarm Screen
Press '.
Hourly Time
Signal Screen
Alarm Operation
The alarm sounds at the preset time for about 10 seconds, regardless of the mode the
watch is in.
• To stop the alarm tone after it starts to sound, press any button.
• Alarm and Hourly Time Signal operations are performed in accordance with the
Timekeeping Mode digital time.
To turn the alarm and the Hourly Time Signal on and off
On/Off status
When the alarm is turned on, the alarm sounds when the
alarm time is reached. You can also turn on an Hourly
Time Signal, which will cause the watch to beep twice
every hour on the hour.
• When the alarm is turned on, the alarm screen
alternates between
alarm time (hour and minutes). When the alarm is off,
ALOF
(alarm off) remains on the alarm screen.
• Pressing D in the Alarm Mode toggles between the
alarm screen and Hourly Time Signal screen.
• All of the operations in this section are performed in the
Alarm Mode, which you enter by pressing C (page
E-9).
1. In the Alarm Mode, press D to select the alarm or the
Hourly Time Signal screen.
2. Press A to toggle the currently selected function on
(ON displayed) and off (OF displayed).
ALON
(alarm on) and the current
E-37
E-39
Operation Guide 5133
Illumination
An LED (light-emitting diode) and light guide panel
illuminate the face of the watch for easy reading in the
dark.
• See “Illumination Precautions” on page E-68 for other
important information.
To turn on illumination
In any mode (except when a setting is on the display),
pressB to illuminate the face of the watch for about one
second.
E-40
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 fi rst
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-30) are
displayed in accordance with the time and date settings you confi gure in the
Timekeeping Mode.
• The watch automatically adjusts its analog setting to match the current digital setup
of your Home City. If the analog time is not correct even though you are sure the
digital setup of your Home City is correct and the watch is performing signal
reception properly, check the home positions of the hands and make adjustments if
necessary (page E-49).
E-42
12/24-Hour
City Code
Power SavingButton Operation Tone
3. When the timekeeping setting you want to change is fl ashing, use D or B to
change it as described below.
Screen:To do this:Do this:
E-44
DST
Format
Change the city codeUse D (East) and B (West).
Cycle between Daylight Saving Time (ON),
Standard Time (
AUTO
(
Toggle between 12-hour (
24-hour (
Reset the seconds to
)
24H
OFF
) timekeeping
Seconds
), and Auto DST
12H
) and
00
Day
Hour
Month
PressD.
PressD.
PressD.
Minutes
Year
Timekeeping
Use the Timekeeping Mode to set and view the current time and date. This section
also explains how to manually set the current date and time.
• When setting the time, you can also confi gure settings for the 12/24-hour format.
• Each press of $ cycles the digital display in the sequence shown below.
• All of the operations in this section are performed in the Timekeeping Mode, which
you can enter by pressing & (page E-8).
To set the current digital time and date manually
City code
Screen:To do this:Do this:
• See “City Code Table” at the back of this manual for a complete list of available
• Auto DST (
• For information about settings other than the time and date, see the following.
4. Press A to exit the setting screen.
Press$.
MonthSecondPM indicator
$
Hour : MinutesDay
$
1. In the Timekeeping Mode, hold down A for about two
seconds until the watch beeps and
display.
• This will cau se the currently s elected cit y code to
fl a s h .
2. Press C to move the fl ashing in the sequence shown
below to select other settings.
information, see “Daylight Saving Time (DST)” (page E-46).
(on) and (off)
Toggle Power Saving on (
PSOF
and off (
AUTO
)
) can be selected only while
YYT
, or
is selected as the Home City code. For more
PSON
PressD.
)
PressD.
LIS, LON, MAD, PAR, ROM
Day of week
$
ADJ
appears on the
Power Saving: Power Saving Function (page E-60)
E-41
E-43
,
E-45
,
Daylight Saving Time (DST)
Daylight Saving Time (summer time) advances the time setting by one hour from
Standard Time. Remember that not all countries or even local areas use Daylight
Saving Time.
The time calibration signals transmitted from Mainfl ingen (Germany), Anthorn
(England), or Fort Collins (the United States) include both Standard Time and DST
data. When the Auto DST setting is turned on, the watch switches between Standard
Time and DST (summer time) automatically in accordance with the signals.
• 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 2013).
• The default DST setting is Auto DST (
PAR, ROM, BER, STO, ATH, MOW, TYO, ANC, YVR, LAX, YEA, DEN, MEX, CHI
NYC, YHZ
• If you experience problems receiving the time calibration signal in your area, it is
probably best to switch between Standard Time and Daylight Saving Time (summer
time) manually.
E-46
Analog Timekeeping
The analog time of this watch is synchronized with the digital time. The analog time
setting is adjusted automatically whenever you change the digital time.
Note
• The hands for the analog timepiece move to adjust to a new setting whenever any
of the following occurs.
• If the analog time does not match the digital time for any reason, use the procedure
described under “To adjust home positions” (page E-49) to match the analog
setting to the digital setting.
• Whenever you need to adjust both the digital and the analog time settings manually,
make sure you adjust the digital setting fi rst.
• Depending on how much the hands have to move in order to adjust to the digital
time, it may take some time before they stop moving.
E-48
YYT
, or
as your Home City code.
When you change the digital time setting manually
When the digital time setting is changed by time calibration signal reception
When you change the Home City code and/or DST setting
AUTO
) whenever you select
LIS, LON, MAD
To change the Daylight Saving Time (summer time) setting
1. In the Timekeeping Mode, hold down A for about two seconds until the watch
ADJ
beeps and
• This will cau se the currently s elected cit y code to fl ash.
appears on the display.
2. Press C once and the DST setting screen appears.
3. Use D to cycle through the DST settings in the sequence shown below.
Auto DST (AUTO)DST off (OFF)DST on (ON)
,
,
4. When the setting you want is selected, press A to exit the setting screen.
• The DST indicator a ppears on the di splay to indicate th at Daylight Saving T ime
is turned on.
E-47
Adjusting Home Positions
Strong magnetism or impact can cause the hands 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 analog time and digital time
are the same in the Timekeeping Mode.
To adjust home positions
Correct hour and
minute hand positions
1. In the Timekeeping Mode, hold down A for about fi ve
seconds. You can release the button after “
appears on the display.
• Though “AD J” will appear o n the display af ter about
two seco nds, do not rele ase the butt on yet. Keep it
depressed until “H-SET” appears.
• The hour an d minute hands s hould move to 12
o’clock (their ho me positio n), and “0:00” should
fl ash on the disp lay.
H-SET
”
E-49
Operation Guide 5133
• If the hour an d minute hands a re out of positi on, use the D (+) and B (–)
buttons to adj ust them.
• Holding do wn either the D (+) or B (–) button wi ll cause the min ute hand
to move at high spe ed, even if you relea se the butto n. High-sp eed hand
movement wi ll continue unt il you press eith er button. H igh-spe ed hand
movement started with the D button wil l also stop autom atically afte r 12
revolutions , while one sta rted with th e B button wil l stop automatic ally after
one revolution.
2. After everything is the way you want, press A to return to the Timekeeping Mode.
• After per forming ho me positio n adjustment , enter the Tim ekeeping Mo de and
check to make su re that the anal og hands and th e digital displ ay indicate the
same time. I f they do not, per form hom e position adj ustment agai n.
E-50
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
panel, 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.
• The current time and all other settings return to their initial factory defaults whenever
battery power drops to Level 5 (pages E-54 and E-55) and when you have the
battery replaced.
• Turn on the watch’s Power Saving function (page E-60) 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-52
•
The battery level indicator shows you the current power level of the rechargeable
battery.
LevelBattery Level IndicatorFunction Status
1All functions enabled.
2All functions enabled.
Button operations, alarm, hourly time signal,
illumination, and time calibration signal reception
disabled.
All functions disabled.
All functions, including timekeeping,
disabled and initialized.
E-54
3
4
5
(Charge Soon Alert)
(Charge Soon Alert)
Power Supply
This watch is equipped with a solar panel and a rechargeable battery that is charged
by the electrical power produced by the solar panel. 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 effi ciency drops
when any part of the solar panel is
blocked by clothing, etc.
• You should try to keep the watch outside
of your sleeve as much as possible.
Charging is reduced signifi cantly if the
face is covered only partially.
To check the current battery level
In the Timekeeping Mode, press & to display the battery level indicator (page E-8).
Battery level indicator
• The fl ashing indicator at Level 3 and the fl ashing charge indicator (C) at Level
4 tell 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, reconfi gure the
current time, date, and other settings.
• The watch’s Home City code setting will change automatically to
whenever the battery drops to Level 5. With this Home City code setting, the watch
is confi gured 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.
Solar panel
TYO
E-51
E-53
(Tokyo)
E-55
• Performing illumination, or beeper operations during a
short period may cause
display.
After some time, battery power will recover and
(recover) will disappear, indicating that the above
functions are enabled again.
Recover indicator
E-56
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)8 minutes
Sunlight Through a Window (10,000 lux)30 minutes
Daylight Through a Window on a Cloudy Day (5,000 lux)48 minutes
Indoor Fluorescent Lighting (500 lux)8 hours
• For details about the battery operating time and daily operating conditions, see the
“Power Supply” section of the Specifi cations (page E-71).
• Stable operation is promoted by frequent exposure to light.
E-58
• If (recover) appears frequently, it probably means
that remaining battery power is low. Leave the watch in
bright light to allow it to charge.
(recover) to appear on the
Approximate
Exposure Time
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-57
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.
Level 5Level 4Level 3Level 2Level 1
Approximate Exposure Time
3 hours28 hours8 hours
8 hours105 hours28 hours
13 hours169 hours46 hours
144 hours– – –– – –
E-59
Operation Guide 5133
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.
Power Saving Function
E-60
To turn Power Saving on and off
On/Off status
E-62
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 refl ectivity 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.
E-64
When turned on, the Power Saving function enters a sleep
state automatically whenever the watch is left in an area
where it is dark for a certain period. The table below
shows how watch functions are affected by the Power
Saving function.
1. In the Timekeeping Mode, hold down A for about two
seconds until the watch beeps and
display.
• This will cau se the currentl y selected cit y code to
fl a s h .
2. Press C 10 times until the Power Saving on/off screen
appears.
3. Press D to toggle Power Saving on (
PSOF
(
).
4. Press A to exit the setting screen.
ADJ
appears on the
PSON
) and off
Elapsed Time in DarkDisplayOperation
60 to 70 minutesBlankAll functions enabled, except for the display
6 or 7 daysBlank
• Wearing the watch inside the sleeve of clothing can cause it to enter the sleep
state.
• 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.
Auto Return Features
• If you leave the watch in the Alarm Mode, or with the battery level indicator
displayed for two or three minutes without performing any operation, it automatically
returns to the Timekeeping Mode.
• If you leave the watch with a fl ashing setting on the display for two or three minutes
without performing any operation, the watch automatically exits the setting screen.
Scrolling
TheB and D buttons are used in various modes and setting screens to scroll
through data on the display. In most cases, holding down these buttons during a scroll
operation scrolls through the data at high speed.
Initial Screens
When you enter the World Time Mode, the data you were viewing when you last
exited the mode appears fi rst.
• If you are in an area where proper time calibration signal reception is impossible,
the watch keeps the time with the precision noted in “Specifi cations”.
• 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, and DST
(summer time) settings (page E-47), and auto receive settings (page E-26).
• 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 (Mainfl ingen) and England (Anthorn).
• Beeper tone, illumination, and display
disabled
• Analog timekeeping stopped at 12 o’clock
• Auto receive disabled
TYO
(Tokyo) whenever the
E-61
E-63
E-65
• When a China time zone is selected, the watch receives the time calibration signals
transmitted from China (Shangqiu City).
• When your Home City is
can receive both the Anthorn and Mainfl ingen signals), the watch fi rst tries to pick
up the signal it last successfully received. If that fails, it tries the other signal. For
the fi rst receive after you select your Home City, the watch tries the nearest signal
fi rst (Anthorn for
MOW
).
Timekeeping
• Resetting the seconds to 00while 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 00without changing the minutes.
• The day of the week is automatically displayed in accordance with the date (year,
month, and day) settings.
• The year can be set in the range of 2000 to 2099.
E-66
Illumination Precautions
• Illumination may be hard to see when viewed under direct sunlight.
• Illumination automatically turns off whenever an alarm sounds.
• Frequent use of illumination runs down the battery.
E-68
LIS, LON, MAD, PAR, ROM, BER, STO, ATH, MOW
LIS,LON
, Mainfl ingen for
MAD,PAR, ROM, BER, STO, ATH
(which
, and
• 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 or when battery power
drops to Level 5.
• 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.
12-hour/24-hour Timekeeping Formats
The 12-hour/24-hour timekeeping format you select in the Timekeeping Mode is also
applied in all other modes.
• With the 12-hour format, the PM indicator (P) appears on the display for times in the
range of noon to 11:59 p.m. and no indicator appears 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.
E-67
Specifi cations
Accuracy at normal temperature:
Digital Timekeeping:
Time system: Switchable between 12-hour and 24-hour formats
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); Daylight Saving
Time Calibration Signal Reception:
the Chinese calibration signal) (Remaining auto receives cancelled as soon
as one is successful); Manual receive
Receivable Time Calibration Signals:
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)
Hour, minutes, seconds, p.m. (P), month, day, day of the week
Time (summer time)/Standard Time
± 30 seconds a month (with no signal calibration)
Auto receive 6 times a day (5 times a day for
Mainfl ingen, Germany (Call Sign: DCF77,
E-69
Operation Guide 5133
Analog Timekeeping:
World Time:
Other: Standard Time/Daylight Saving Time (summer time)
Alarms:
Daily alarm; Hourly Time Signal
Countdown Timer:
Measuring unit: 1 second
Input range: 1 to 60 minutes (1-minute increments)
Stopwatch:
Measuring unit: 1/100 second
Measuring capacity: 59' 59.99''
Measuring modes: Elapsed time, split time, two fi nishes
Illumination:
Other:
Battery level indicator; Power Saving, Button operation tone on/off
E-70
Hour, minutes (hand moves every 20 seconds)
48 cities (31 time zones)
LED (light-emitting diode)
City Code Table
City
City
Code
PPG Pago Pago–11
HNLHonolulu–10
ANC Anchorage–9
YVRVancouver
LAX Los Angeles
YEAEdmonton
DENDenver
MEX Mexico City
CHIChicago
NYCNew York–5
SCLSantiago
YHZHalifax
YYTSt. Johns–3.5
L
UTC Offset/
GMT Differential
–8
–7
–6
–4
City
Code
RIO Rio De Janeiro–3
Fernando de
FEN
Noronha
RAIPraia–1
UTC
LISLisbon
LONLondon
MADMadrid
PAR Paris
ROMRome
BERBerlin
STOStockholm
City
UTC Offset/
GMT Differential
–2
0
+1
Power Supply:
Solar panel and a rechargeable battery
Approximate Battery Operating Time
8 months (from full charge to Level 4 when the watch is not exposed to light)
under the following conditions:
•
Display on 18 hours per day, sleep state 6 hours per day
•
1 illumination operation (1.5 seconds) per day
•
10 seconds of alarm operation per day
•
4 minutes of signal reception per day
Frequent use of illumination can shorten battery operating time.