How to charge the battery
Expose the dial to light to charge the watch.
To ensure optimal performance of the watch, make sure that the watch is kept sufficiently charged at all times.
Under the following situations, the energy of the watch is likely to be depleted, resulting in stoppage of the watch:
The watch is concealed under a sleeve.
The watch is used or stored under conditions where it cannot be exposed to light for a long time.
Be careful to make sure that the watch does not get hot when it is charging. (The operating temperature range is -10°C to +60°C.)
When you first start using the watch or starting it after it stopped due to a lack of charge, charge the watch sufficiently using the table on Guide to charging times as a guide.
Guide to charging times
Charge the watch using the times below as a guide.
|
Illuminance |
Light source |
Condition (Example) |
Time required for fully charging the watch |
Time required for the stopwatch function to be available |
Time required for charging the watch to last for 1 day |
|---|---|---|---|---|---|
|
700 |
Fluorescent light |
General offices |
- |
200 hours |
4.5 hours |
|
3,000 |
Fluorescent light |
30 W 20 cm |
260 hours |
50 hours |
70 minutes |
|
10,000 |
Fluorescent light |
30 W 5 cm |
80 hours |
15 hours |
20 minutes |
|
10,000 |
Sunlight |
Cloudy day |
80 hours |
15 hours |
20 minutes |
|
100,000 |
Sunlight |
Sunny day (Under direct sunlight on a summer day) |
8 hours |
2 hours |
6 minutes |
The “Time required for the stopwatch function to be available” figure is an estimate of the amount of time required to expose the stopped watch to light and charge the watch until the stopwatch function is available. Although the function can be used without charging the watch for this amount of time, the stopwatch function may quickly become unusable. Charge the watch using these times as a guide.
The required charging time slightly varies depending on the model of the watch.