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.

Low Battery

A low battery will cause [LOW] to flash and will disable the functions below.

Time signal reception

Illumination

Sounds (alarms, etc.)

Connection with a phone

If the charge level drops even further, [CHG] will flash. If this happens, all functions are disabled.

Dead Battery

The digital display will go blank if the battery goes dead. Memory data is lost, and watch settings are returned to their initial factory defaults.

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 Low		8 minutes
		30 minutes
		48 minutes
		8 hours

Charge Recovery Times

3459

Light Intensity	Approximate Charging Time
Light Intensity	Charge Level 1	Charge Level 2
High Low	3 hours	45 hours
	10 hours	168 hours
	16 hours	270 hours
	208 hours	-

3461

Light Intensity	Approximate Charging Time
Light Intensity	Charge Level 1	Charge Level 2
High Low	3 hours	45 hours
	10 hours	169 hours
	16 hours	274 hours
	210 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 Function

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 display to go blank, and the watch to enter Level 1 power saving. If the watch is left in this condition for six or seven days, the watch will enter Level 2 power saving.

Power Saving Level 1:

Digital display goes blank to save power. The watch can connect with a phone at this level.

Power Saving Level 2:

Digital display goes blank to save power. All functions are disabled.

Recovering from Power Saving Operation

Use one of the operations below to exit power saving.

Press any button.

Move the watch to a bright location.

Trigger auto light by angling the watch towards your face.

Operation Guide