Casio 3459, Operation Manual, Page: 3 / 22

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Low Battery
A low battery will cause [LOW] to flash and will
disable the functions below.
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Time signal reception
●
Illumination
●
Sounds (alarms, etc.)
●
Connection with a phone
If the charge level drops even further, [CHG]
will flash. If this happens, all functions are
disabled.
●
Dead Battery
The digital display will go blank if the battery
goes dead. Memory data is lost, and watch
settings are returned to their initial factory
defaults.
Important!
●
Should the battery go low or go
dead, expose the face (solar panel)
to light as soon as possible.
●
Exposing the watch to light while its
battery is dead will cause [CHG] to
start flashing. Keep the watch
exposed to light until the current time
appears on the display.
Note
●
If [R] is flashing, it means that all
functions, except for timekeeping,
are disabled due to high momentary
battery power consumption.
●
Charging Time Guidelines
The table below shows guidelines for
approximate charging times.
Required Charging Time for 1-day Use
Light Intensity Approximate Charging Time
High
p
Low
A
8 minutes
B
30 minutes
C
48 minutes
D
8 hours
Time Required to Achieve Next Charge
Level
Light Intensity
Approximate Charging Time
Charge Level
1
Charge Level
2
High
p
Low
A
3 hours 45 hours
B
10 hours 168 hours
C
16 hours 270 hours
D
208 hours -
Charge Level 1 :
Time from dead battery until hand movement
starts
Charge Level 2 :
Time from hand movement start until a full
charge
Light Intensity
A
Sunny day, outdoors (50,000 lux)
B
Sunny day, near a window (10,000 lux)
C
Overcast day, near a window (5,000 lux)
D
Indoor fluorescent lighting (500 lux)
Note
●
Actual charging time depends on the
local charging environment.
●
Power Saving Function
Leaving the watch in a dark location for about
one hour between the hours of 10 p.m. and 6
a.m. will cause the display to go blank, and the
watch to enter Level 1 power saving. If the
watch is left in this condition for six or seven
days, the watch will enter Level 2 power
saving.
Power Saving Level 1 :
Digital display goes blank to save power. The
watch can connect with a phone at this level.
Power Saving Level 2 :
Digital display goes blank to save power. All
functions are disabled.
Recovering from Power Saving Operation
Use one of the operations below to exit power
saving.
●
Press any button.
●
Move the watch to a bright location.
●
Trigger auto light by angling the watch
towards your face.
Note
●
The watch will not enter power
saving in the cases below.
—
Alarm Mode
—
While in the Stopwatch Mode
—
While in the Timer Mode
●
You can enable or disable Power
Saving.
l
Configuring Power Saving Function
Settings
●
Note that the watch also may enter
power saving if its face is blocked
from light by your sleeve while you
are wearing it.
Operation Guide 3459
3