Casio 5012 (OC) Operation Manual

MA0804-EC

Before using the watch...

Expose the watch to light.

Your watch runs on electrical power generated from light, which is
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
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 jump at 2-second intervals to let you know that charging is
required.
• See "Low Battery Alert" for more information.
30
30
Jumps at 2-second
intervals.

Modes and Indicators

• To toggle between the Timekeeping Mode and Stopwatch Mode, press the D button.
Timekeeping Mode
Indicator hand
Hour hand Minute hand
Button Button
24-hour
Day of the
hand
week hand
Button Button
30
Second hand
Day
For more information, see "How a Radio-controlled
Watch Works".
Operation Guide 5012 (OC)

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 the watch is left in the dark.
The watch will exit the sleep state if you expose it to light or perform
any button operation.
• Though the hands are stopped, the watch continues to keep time
internally.
• Note that the watch also may enter the sleep state and stop if the
solar panel is blocked from light by your sleeve.
Sleep Level 1
Sleep Level 1 is triggered whenever the watch is left in the dark for
about one hour any time between the hours of 10 p.m. and 6 a.m.
In Sleep Level 1:
• The second hand is stopped.
• The hour hand, 24-hour hand, minute hand, and day indicator
continue to operate normally.
• Auto Receive is performed 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.
In Sleep Level 2:
• The hour hand, 24-hour hand, and minute hand are stopped.
• If the watch reaches Sleep Level 2 while in the World Time Mode,
the hands will move to 12 o'clock and stop when the Home City
time (kept internally) reaches midnight.
• Auto Receive is disabled.
• The day indicator continues to operate normally.
The shape and markings of the face depend on the watch
model.
Stopwatch Mode
Second hand
30
1/20-second hand
1/20-second timing is performed only for the first minute
(While reset.)
after you start or restart an elapsed time measurement.
• You also can start a stopwatch elapsed time
operation from the Timekeeping Mode by pressing
the button.
• To toggle between the Timekeeping Mode and World Time Mode,
press the C button.
• About 1.5 seconds after you enter the World Time Mode, the
watch's hands will start to move to the current World Time. Note
that the only operation you can perform while the hands are
moving is changing to another mode.
Timekeeping Mode
• Start
• Stop
Minute
hand
• Reset
30
World Time Mode
City code
30
1