Casio 4343 Operation Manual

MA0804-EG

Before using the watch...

Expose the watch to light

Your watch runs on electrical power generated from light and stored
by a chargeable battery. Long-term storage of the watch can cause
the battery to run low, so be sure to expose the watch to light for
some time before using it for the first time. See "Solar Charging" for
more information.
Low Battery Alert
When secondary battery power is low, the second hand of the watch
will start to jump at 2-second intervals to let you know that charging
is required.
• See "Low Battery Alert" for more information.
Jumps 2 seconds

Modes and Indicators

Chronograph Mode
Second Hand
• Start
• Reset
• Stop
Chronograph
Hands
(Hour, Minute)
1/20-second Hand
(First minute only.)
The stopwatch performs 1/20-second elapsed time
measurement up to 23 hours, 59 minutes, 59.95
seconds (24 hours).
(While
Start/Stop
chronograph
Press the button to start and stop the
is reset.)
chronograph.
Chronograph Reset
To exit the Chronograph Mode, the chronograph must
be reset by pressing the button while the
chronograph is stopped. The chronograph is reset
when the second hand, chronograph hands, and 1/20-
second hand are all at 12 o'clock.
Operation Guide 4343

Power Saving

Power Saving causes the watch to enter a sleep state automatically
and stop movement of the analog hands in order to save power
whenever it is left in the dark. The watch will exit the sleep state if
you expose it to light or perform any button operation.
• Note that the watch may also enter the sleep state and stop if it is
blocked from light by your sleeve.
How the sleep state works
Sleep Level 1
The display sleep state is triggered whenever the watch is left in the
dark for about one hour between the hours of 10 p.m. and 6 a.m.
• The second hand stops.
• The hour and minute hands, and the date indicator continue to
operate normally.
• Alarms and the hourly time signal continue to operate normally.
Sleep Level 2
Sleep Level 2 is triggered whenever the watch is left in the dark
while in Sleep Level 1 for six or seven days.
• The hour and minute hands, and the date indicator stop at their
current positions.
• Auto Receive is disabled.
• Alarms and the hourly time signal are disabled.
• Digital timekeeping functions continue to operate normally.
Timekeeping Mode
Indicator Hand
Minute Hand
Hour Hand
Button Button
(Chronograph
Mode)
Hour Hand
(24-hour)
Button Button
Second Hand
(Moving) Date
❚ To check the reception result
Press the button. The indicator
hand will move to "Y" (successful) or
Y:
"N" (unsuccessful) to indicate the
Successful
reception result.
N:
Unsuccessful
❚ To trigger a receive operation manually
Hold down the button for about two seconds until
the indicator hand moves to the "READY" position. This
will start signal reception.
For more information, see "How a Radio-
controlled Watch Works".
You can use the button operations shown below to enter the Timekeeping Mode, World Time Mode, or Alarm Mode directly.
World Time Mode
City Code
(New York)
World Time
(Hour, Minute)
Alarm Mode
ON = On OFF = Off
Alarm Time
(Hour, Minute)
• On/Off
• The indicator hand points to the city code.
• World Time lets you display the current time in any one
of 27 cities (29 time zones) around the world.
❚ To search for a city code
Use the button to scroll clockwise through the city
codes around the face.
• The indicator hand points to ON or OFF.
• Use this mode to set the alarm time and to turn the
alarm on or off.
❚ To turn the alarm on or off
Press the button to toggle the alarm on and off.
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