CITIZEN 8730 - Manual (Page 12)

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Guide to Charging Time
The charging time varies according to the model (including the color of the watch
face). The following data should only be used as a guideline.
Illuminance
(lx)
500
Environment
Indoor lighting
Charging time (approximate)
4 hours
Time from stopping
to resuming the
1-second interval
movement
-----
Time for full
charging
-----
1,000 60 - 70 cm (24 - 28 in) beneath
a 30 W fluorescent light 2 hours 60 hours -----
3,000
20 cm (8 in) beneath a
30 W florescent light
50 minutes 25 hours 150 hours
10,000 Cloudy sky 30 minutes 14 hours 90 hours
100,000 Direct summer sunlight 6 minutes 3 hours 19 hours
For a 1-day
movement
charging time
* The charging time is based on continuous exposure.
CAUTION
Charging precautions
j Do not charge the watch in a high-temperature environment (about 60°C / 140°F
or more).
Overheating while charging can cause the watch exterior to become discolored,
the watch to deform or the movement to be damaged.
Example:
• Charging close to incandescent lighting, halogen lamps, or other lighting
sources that easily become hot.
• Charging on surfaces that can easily become hot, such as a car dashboard.
j When charging with incandescent lighting, halogen lamps, or other lighting
sources that easily become hot, place the watch at least 50 cm (20 in) away
from the source to avoid overheating.