Solar Charging
This watch runs on power supplied from a rechargeable (secondary) battery that is charged by a solar panel. The solar panel is integrated into the face of the watch, and power is generated whenever the face is exposed to light.
Charging the Watch
When you are not wearing the watch, put it in a location where it is exposed to bright light.
While you are wearing the watch, make sure that its face (solar panel) is not blocked from light by the sleeve of your clothing. Power generation efficiency is reduced even when the face of the watch is blocked only partially.
Remaining Charge and Dead Battery
The charge level is indicated by watch hand movement. Functions become disabled as battery power goes low.
Low Battery Power
The second hand jumps at two-second intervals.
Dead Battery
All hands and the day indicator are stopped.
Charging Time Guidelines
The table below shows guidelines for approximate charging times.
Charging Times Required for 1 Day of Operation
|
Light Intensity |
Approximate Charging Time |
|
|---|---|---|
|
High |
|
8 minutes |
|
|
30 minutes |
|
|
|
48 minutes |
|
|
|
8 hours |
|
Charge Recovery Times
|
Light Intensity |
Approximate Charging Time |
||
|---|---|---|---|
|
Charge Level 1 |
Charge Level 2 |
||
|
High |
|
3 hours |
37 hours |
|
|
9 hours |
138 hours |
|
|
|
13 hours |
223 hours |
|
|
|
153 hours |
- |
|
Charge Level 1:
Time from dead battery until watch operation starts.
Charge Level 2:
Time from watch operation start until a full charge.
Light Intensity
- ①
-
Sunny day, outdoors (50,000 lux)
- ②
-
Sunny day, near a window (10,000 lux)
- ③
-
Overcast day, near a window (5,000 lux)
- ④
-
Indoor fluorescent lighting (500 lux)
Power Saving
Leaving the watch in a dark location for about one hour between the hours of 10 p.m. and 6 a.m. will cause the second hand to stop, and the watch will enter Level 1 power saving. If the watch is left in this condition for six or seven days, all hands (except for the mode hand) will stop at 12 o’clock and the watch will enter Level 2 power saving.
Level 1:
Second hand stops to save power.
Level 2:
The following operations are stopped to save power: all hand movement (excluding the day indicator), Bluetooth connection, and alarm alerts.
Recovering from Power Saving Operation
Press any button or place the watch in a well-lit area to recover from power saving.
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