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Operation Guide 2730
1
MA0309-EA
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 face is blocked from light by your sleeve.
❚
To recover from the sleep state
Place the watch in an area that is well-lit, press any button, or
angle the watch towards your face to illuminate the display using
the Auto Light.
• It can take up to two seconds before the display re-appears after
you place the watch in a well-lit area.
❚
To turn power saving on and off
See the procedure under “Manually Setting 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 the power saving mode to trigger in order to conserve
battery power.
Power Saving
Each press of the
CC
CC
C button sounds a confirmation tone and cycles through available modes in the sequence shown below.
City Code
World Time
Timekeeping Mode World Time Mode
Hand Setting Mode
Switching Between Screens
Each press of the button toggles the digital display
between the Calendar Screen and Timekeeping Screen.
Mode Name
(Illuminates display)
(Changes mode)
button
button button
button
Calendar Screen Timekeeping Screen
Day
Day of the Week
PM Indicator
(no indicator for AM)
SecondsMonth Hour
Minutes
Days of the Week
SU : Sunday MO : Monday TU : Tuesday,
WE
: Wednesday TH : Thursday
FR
: Friday,
SA : Saturday
❚
How the sleep state works
There are actually two sleep state levels, a “display sleep state”
and a “function sleep state”.
• Display sleep state
The display sleep state is triggered whenever the watch is left in
the dark for three or four days.
• Alarms and the hourly time signal continue to operate normally
while the watch is in the display sleep state.
Even when the watch is in the sleep state, digital-analog time
coordination and auto signal receive are both performed.
• Function sleep state
The function sleep state is triggered whenever the watch is left in
the dark for four days after the display sleep state is triggered.
• Alarms and the hourly time are also disabled while the watch is
in the function sleep state.
In the function sleep state, analog timekeeping is disabled, so
digital-analog time coordination is not performed.
• Digital timekeeping functions continue to operate normally in
the function sleep state.
Power Saving
Indicator
Alarm Number
Alarm Time
Standby Screen
Mode Name
Mode Name
Record Number
Data
Mode Name
Measured Value
Alarm Mode e-DATA MEMORY Mode
Stopwatch Mode Time Stamp Mode
Modes and Display Screens
• The watch automatically returns to the Timekeeping Mode if you do not perform any operation for about two or three minutes in the Alarm
Mode (excluding the target alarm), e-DATA MEMORY Mode, or Hand Setting Mode.