[Insufficient Charge Warning Function]; [Overcharge Prevention Function]; [Power Save 1 Function] - Citizen U10 Instruction Manual

[Insufficient Charge Warning Function]

When the watch becomes insufficiently charged, the
second hand changes from 1-second interval movement
to 2-second interval movement. The battery mark and
"Charge" are also displayed on the digital display.
If the watch is continued to be used while insufficiently
charged, it stops running after about 2 days. Promptly
expose the watch to light and recharge it to level 5.
<The functions of the watch are limited in the
following manner when the watch becomes
insufficiently charged.>
• Water sensor is not activated and the watch cannot be
used for diving.
• The mode cannot be changed and corrections and
settings cannot be made even if the buttons are pressed.
• The alarm does not sound.
• The EL light is not illuminated.
2 seconds
2 seconds

[Overcharge Prevention Function]

The overcharge prevention function is activated
automatically when the watch face (solar cell) is
exposed to light and the secondary battery is fully
charged to prevent the battery from being charged
further. The secondary battery and accuracy, functions
and performance of the watch are unaffected no matter
how much the watch is charged.
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<when insufficiently charged>
[Power Save 1 Function] ··· The second hand stops
at the 0 seconds position when the Power Save 1
function is activated.
When power is not generated as a result of the watch not
being exposed to light for two consecutive hours when in
the standard mode, the second hand stops at the 0 seconds
position and the watch automatically enters the power
save mode to reduce power consumption.
<The hands and digital display appear as described
below.>
• Second hand: Stops at the 0 seconds position.
• Hour and minute hands: Continue to keep the current
time.
• Function hand: Indicates the charge level.
• Digital display: Displays the city name and date.
• The alarm sounds at the set alarm time.
<Second hand stops at 0 seconds
position>
Canceling Power Save 1:
• Power save 1 is canceled either when the solar cell is
exposed to light and the watch begins to generate power
or a button is pressed switch the watch on.
• Power save 1 is also canceled when the water sensor is
activated and the watch is switched to the diving mode.
When power save 1 has been canceled, the second hand
rapidly advances to the current time (seconds) and begins
1-second interval movement.
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