Casio Casio Watch 2645 User's Manual

Casio Watches User's Manual - Casio Watch 2645.
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Operation Guide 2514/2645

1

Power Saving

Display Illumination

Modes and Display Screens

• The actual appearance of your watch display depends on its model number.

The Power Saving feature of the watch is turned on at the factory.

• Power Saving causes the watch to automatically enter a sleep

state to save power whenever the watch is left in the dark.

• Note that the watch may also enter the sleep state if the watch is

blocked from light by your sleeve.

❚ How the sleep state works
• Display sleep state

The display sleep state is triggered whenever the watch is left in
the dark for three or four days.

• The display goes blank, except for a sleep indicator.

Alarms, the hourly time signal, and auto signal reception
continue to operate normally while the watch is in the
display sleep state.

• Function sleep state

The function sleep state is triggered whenever the watch is left in
the dark for four days.

• Alarms, the hourly time signal,

and auto signal reception do
not operate while the watch is
in the function sleep state.

• Digital timekeeping functions

continue to operate normally in
the function sleep state.

❚ To recover from the sleep state
Move the watch to a brightly lit location or press any button.

• It may take as long as five seconds to recover from the sleep state

❚ To turn Power Saving on and off
See the procedure under “To manually set the time and date” for
information about turning off Power Saving.

Leaving the watch in a drawer or anywhere else it is dark can
cause Power Saving to trigger in order to conserve battery
power.

Pressing the L button in any mode illuminates the display for
about 1.5 seconds for easy reading in the dark.

Important!

• The light may be difficult to see if you turn it on under bright

sunlight.

• The light is shut off automatically if the alarm starts to sound

while it is on.

• You may notice a slight sound from the watch while the display

is illuminated. This is the sound of EL panel vibration, and does
not indicate malfunction.

Each press of the C button sounds a confirmation tone and cycles through available modes in the sequence shown below.

• The watch will automatically revert to the Timekeeping Mode if you leave it in the Alarm Mode or Data Memory Mode without performing any

operation for about two or three minutes.

World Time Mode

Timekeeping Mode

Stopwatch Mode

Days of the Week
SUN  : Sunday 

MON  : Monday 

TUE : Tuesday

WED : Wednesday  THU  : Thursday  FRI  : Friday
SAT : 

Saturday

Button

Button

Button

Button

(Light)

Button

 (Mode Switching)

PM indicator
(no display for AM)

Day of the Week

(RECOVER indicator)

(Sleep indicator)

(Alarm Indicator)

Month - day

Seconds

Hour : Minutes

Receive Icon

Receive Indicator

Battery Indicator

Time

GMT Differential

City Code

World Time

Mode Name

Message 
text 
appears 
when text 
is present.

Alarm Mode

Data Memory Mode

Alarm Number

Alarm Time

Record Number

Data

Sleep indicator

MA0310-EA

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