Casio 2645 Watch User Manual


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Operation Guide 2514/2645
1
Power Saving
Display IlluminationModes 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 ModeTimekeeping 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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