Specifications

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9. General Reference for Charging Times
The time required for charging varies according to the model of the watch (color of the
dial, etc.). The following times are shown below to serve only as a reference.
* Charging time refers to the amount of time the watch
is continuously exposed to light.
Charging time for 1 day of operation:
Time required for charging the
watch to run for 1 day at 1-second
interval movement.
Full charging time:
Time required for charging the
watch from the stopped state to
ully charged.
Level 1: The watch is not charged
sufficiently for one-second
interval movement.
Charge the watch at least to
level 2.
Illuminance
(lux)
500
1,000
3,000
10,000
100,000
Environment
Inside an ordinary office
60-70 cm (24-28 in.) under
a fluorescent lamp (30 W)
20 cm (8 in.) under a
fluorescent lamp (30 W)
Outdoors, cloudy
weather
Outdoors, summer,
under direct sunlight
Charging time
Charging time
required for 1 day of
operation
3.5 hours
2 hours
35 minutes
11 minutes
2 minutes
Charging time to level 1 (1-
second interval movement)
from stopped state
40 hours
18 hours
6 hours
2 hours
25 minutes
Charging time to level 2
from stopped state
Charging time to level 3
(fully charged) from
stopped state
100 hours
30 hours
5.5 hours
150 hours
45 hours
8.5 hours