Citizen B690 User Manual page 9

<Model without a second hand>
Illuminance
Environment
(lx)
20 cm (8 in.) beneath a 30 W
3,000
florescent light
10,000 Cloudy sky
Under direct midsummer
100,000
sunlight
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Charging time (approximate)
Time from
stopping to
For a 1-day
Time for full
resuming the
movement
charging
1-second
charging time
interval
movement
40 minutes 14 hours --------
12 minutes 4.5 hours 60 hours
2 minutes 25 minutes 11 hours
[NOTE]
A fully charged battery will run the watch for about 9 months without further
charging.
If the watch stops due to insufficient charge, take care to charge it daily.
Furthermore, it is recommended to charge your watch by exposing to direct sunlight
for a long time once a month.
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