Operation Guide 3139/3456
E-9
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-38) for more information about manual time settings.
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.
E-8
Radio-controlled Atomic Timekeeping
This watch receives a time calibration signal and
updates its time setting accordingly.
Supported time calibration signals: Germany
(Mainflingen), England (Anthorn), United States (Fort
Collins), Japan.
See the information under “Signal Reception
Troubleshooting” (page E-27) if you experience problems
with time calibration signal reception.
Current Time Setting
This watch adjusts its time setting automatically in
accordance with a time calibration signal. You can also
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-10).
Home Time
(Hour : Minutes Seconds)
PM indicator
DST indicator
Month – Day
Day of week
Year
E-7
C
C
Countdown Timer
Mode
Stopwatch Mode
Alarm Mode
C
E-6
General Guide
Press
C
to change from mode to mode.
In any mode (except when a setting screen is on the display), press
B
to illuminate
the display.
C
C
Timekeeping Mode
World Time Mode
E-5
To test the alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-37
To turn the daily alarm and the Hourly Time Signal on and off . . . . . . . . . . . . E-37
To set the time and date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-40
To change the Daylight Saving Time (summer time) setting . . . . . . . . . . . . . . E-45
To turn off Auto Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-46
To turn on Auto Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-46
To turn the button operation tone on and off . . . . . . . . . . . . . . . . . . . . . . . . . . E-47
E-4
Procedure Lookup
The following is a handy reference list of all the operational procedures contained in
this manual.
To specify your Home City . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-10
To perform manual receive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-24
To turn auto receive on and off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-25
To display the Last Signal screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-26
To view the time in another city . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-29
To toggle a city code time between Standard Time and
Daylight Saving Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-30
To set the countdown start time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-31
To use the countdown timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-32
To measure times with the stopwatch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-34
To set the alarm time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-36
E-3
Contents
General Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-6
Radio-controlled Atomic Timekeeping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-8
World Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-29
Countdown Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-31
Stopwatch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-33
Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-35
Timekeeping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-38
Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-46
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-54
Operating Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-56
User Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-66
E-2
About This Manual
Button operations are indicated using the letters shown
in the illustration.
Each section of this manual provides you with the
information you need in order to perform operations in
each mode. Further details and technical information can
be found in the “Reference” section.
To ensure that this watch provides you with the years of
service for which it is designed, carefully read and follow
the instructions in this manual, especially the information
under “Operating Precautions” and “User Maintenance”.
E-1
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.
Caution!
Your watch is shipped with its Auto Display feature (which continually changes the
contents of the digital display) turned on. Calibration signal reception is disabled
while Auto Display is turned on.
Press any button to turn off Auto Display and return to the Timekeeping Mode.
