Casio 4321 Operation Manual

MO0707-EA
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.
Expose the watch to bright light to charge its battery before using it.
You can use this watch even as its battery is being charged by exposure to bright light.
• Be sure to read "Power Supply" of this manual for important information you
need to know when exposing the watch to bright light.
Keep the watch exposed to bright light
Bright Light
Solar cell
• 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.
Bright Light
Solar cell
(Converts light to
electrical power.)
LEVEL 1
LEVEL 2
LEVEL 3
Charge
LEVEL 4
Rechargeable battery
General Guide
• Press C to change from mode to mode.
• In any mode, press B to illuminate the face of the watch.
Timekeeping Mode
Radio-controlled Timekeeping
Hour hand
Minute hand
Day
Day of week Second hand
Current Time Setting
This watch automatically adjusts its time setting 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 set your Home City,
which is the city where you will normally use the watch. For more information, see
"To set your Home City" below.
• When using the watch in an area that is outside of the range of the transmitters in
Anthorn and Mainflingen, you need to manually adjust the time as required. See
"Timekeeping" for information about manual settings.
• 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" for more information.
Operation Guide 4321 4322
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 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 only partially covered.
Battery discharges in the dark.
Electrical
energy
All
LEVEL 1
functions
LEVEL 2
enabled
LEVEL 3
Dis-
charge
LEVEL 4
Battery Level Indicator
Press C.
This watch receives a time calibration signal and updates
its time setting accordingly. The time calibration signal
includes both Standard Time and Daylight Saving Time
(summer time) data.
• This watch is designed to pick up the time calibration
signal transmitted from Anthorn, England and the signal
from Mainflingen, Germany.
• The actual level at which some functions are disabled depends on the watch model.
• Be sure to read "Power Supply" 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" for more information.
About This Manual
Some or all
functions
disabled
World Time Mode
Hand Setting Mode
To set your Home City
City code
• 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 (in
the middle of the night). You can also perform manual receive or you can set the time
manually.
• If you are in an area that does not use Daylight Saving Time (summer time), turn off
the DST setting.
• 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
"Transmitters".
• 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.
Alarm Mode
Stopwatch Mode
1. In the Timekeeping Mode, hold down A until the city
code starts to flash, which indicates the setting screen.
• The second hand will move at high speed to the 12
o'clock position, where it will stop.
2. Use D (east) and B (west) to select the city code you
want to use as your Home City.
• The following are the city codes for major cities in the
Western Europe time zones.
LON : London
PAR and BER : Paris, Berlin, Milan, Rome,
Amsterdam, Hamburg, Frankfurt,
Vienna
ATH : Athens
3. Press A to exit the setting screen.
• The second hand will advance at high speed to the
correct position in accordance with seconds count of the
digital time, and resume normal movement from there.
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