Casio 4343 User Manual

Operation guide 4343, Before using the watch, Modes and indicators

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Operation Guide 4343

1

MA0

8

0

4

-E

G

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.

30

Jumps 2 seconds

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.

Before using the watch...

Alarm Mode

World Time Mode

30

30

World Time
(Hour, Minute)

Alarm Time
(Hour, Minute)

City Code
(New York)

OFF = Off

• On/Off

ON = On

• 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.

Chronograph Mode

Timekeeping Mode

30

30

Indicator Hand

(While
chronograph
is reset.)

Second Hand

Minute Hand

Hour Hand

Button

Button

Button

Button

Second Hand
(Moving)

1/20-second Hand

(First minute only.)

Hour Hand
(24-hour)

Date

To check the reception result

Press the

button. The indicator

hand will move to “Y” (successful) or
“N” (unsuccessful) to indicate the
reception result.

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”.

Y:
Successful

N:
Unsuccessful

• Start

• Stop

• Reset

Chronograph
Hands
(Hour, Minute)

The stopwatch performs 1/20-second elapsed time
measurement up to 23 hours, 59 minutes, 59.95
seconds (24 hours).

Start/Stop

Press the

button to start and stop the

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.

(Chronograph
Mode)

You can use the button operations shown below to enter the Timekeeping Mode, World Time Mode, or Alarm Mode directly.

Modes and Indicators

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