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Operation Guide 5163 (OC)
E-7E-6
E-34 Illumination
E-34 To illuminate the display manually
E-35 To turn the auto light switch on and off
E-36 Power Supply
E-42 Timekeeping
E-43 To set the time and date manually
E-46 To change the Daylight Saving Time (summer time) setting
E-47 To specify the Dual Time City
E-48 Correction of Hand Home Positions
E-48 To trigger auto correction of hand home positions
E-49 To adjust the home positions manually
E-50 Reference
E-50 To recover from the sleep state
E-51 To turn Power Saving on and off
E-55 Specifi cations
E-5
Contents
E-1 Getting Acquainted
E-8 General Guide
E-10 Radio Controlled Atomic Timekeeping
E-11 To specify your Home City
E-20 To perform manual receive
E-22 To check the latest signal reception results
E-24 World Time
E-25 To view the current time in another time zone
E-25 To toggle a city code time between Standard Time and Daylight Saving Time
E-26 To swap your Home City and World Time City
E-27 Stopwatch
E-28 To measure times with the stopwatch
E-29 Countdown Timer
E-29 To confi gure countdown start time and auto-repeat settings
E-30 To use the countdown timer
E-31 Alarms
E-31 To set an alarm time
E-33 To turn an alarm on and off
E-33 To turn the Hourly Time Signal on and off
E-4
About This Manual
Depending on the model of your watch, display text appears either as x
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.
x
Each section of this manual provides you with the information you need to x
perform operations in each mode. Further details and technical information
can be found in the “Reference” section.
E-3
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.
xSee “Power Saving Function” (page E-50) for more information.
E-2
The watch continues to operate, even when it is not exposed to light. Leaving the watch in the dark can x
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.
Rechargeable battery
Solar cell
(Converts light to
electrical power.)
Electrical
energy
LEVEL 1
Bright Light
LEVEL 2
LEVEL 3
LEVEL 4
All functions
enabled
Charge
LEVEL 1
LEVEL 2
LEVEL 3
LEVEL 4
Some or all
functions
disabled
Discharge
The actual level at which some functions are disabled depends on the watch model. x
Frequent display illumination can run down the battery quickly and require charging. The following x
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 about 8 hours exposure to indoor fl uorescent lighting −
xBe sure to read “Power Supply” (page E-36) for important information you need to know when
exposing the watch to bright light.
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.
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.
Keep the watch exposed to bright light
The electricity generated by the solar cell 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
x
pointed at a source of bright light.
You should try to keep the watch outside of your sleeve as much as x
possible. Charging is reduced signifi cantly if the face is even only partially
covered.
Bright Light
Solar cell
MA1103-EA