Charging the battery

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.

Two-second interval movement by the seconds hand is a signal that the energy of the watch is nearly depleted. (For models with a seconds hand)

Guide to charging times

Charge the watch using the times below as a guide.

The “Time required for charging the watch to stable hand movement” figure is an estimate of the amount of time required to expose the stopped watch to light and charge the watch until it reaches stable hand movement (for models with a seconds hand: until it reaches one-second interval movement). Charge the watch using these times as a guide.

The required charging time slightly varies depending on the model of the watch.

V111 / V114 / V115 / V116 / V117

Illuminance lx (LUX)	Light source	Condition (Example)	Time required for fully charging the watch	Time required for charging the watch to stable hand movement	Time required for charging the watch to last for 1 day
700	Fluorescent light	General offices	-	60 hours	3 hours
3,000	Fluorescent light	30 W 20 cm	180 hours	10 hours	35 minutes
10,000	Sunlight	Cloudy day	60 hours	4 hours	12 minutes
100,000	Sunlight	Sunny day (Under direct sunlight on a summer day)	10 hours	30 minutes	2 minutes

V131 / V137 / V138

Illuminance lx (LUX)	Light source	Condition (Example)	Time required for fully charging the watch	Time required for charging the watch to stable hand movement	Time required for charging the watch to last for 1 day
700	Fluorescent light	General offices	-	16 hours	110 minutes
3,000	Fluorescent light	30 W 20 cm	90 hours	4 hours	30 minutes
10,000	Sunlight	Cloudy day	30 hours	72 minutes	8 minutes
100,000	Sunlight	Sunny day (Under direct sunlight on a summer day)	10 hours	6 minutes	1 minute

V147 / V157 / V158

Illuminance lx (LUX)	Light source	Condition (Example)	Time required for fully charging the watch	Time required for charging the watch to stable hand movement	Time required for charging the watch to last for 1 day
700	Fluorescent light	General offices	-	25 hours	110 minutes
3,000	Fluorescent light	30 W 20 cm	120 hours	6 hours	30 minutes
10,000	Sunlight	Cloudy day	35 hours	2 hours	10 minutes
100,000	Sunlight	Sunny day (Under direct sunlight on a summer day)	9 hours	24 minutes	2 minutes

V181

Illuminance lx (LUX)	Light source	Condition (Example)	Time required for fully charging the watch	Time required for charging the watch to stable hand movement	Time required for charging the watch to last for 1 day
700	Fluorescent light	General offices	82 hours	6 hours	75 minutes
3,000	Fluorescent light	30 W 20 cm	20 hours	78 minutes	18 minutes
10,000	Sunlight	Cloudy day	5 hours	18 minutes	5 minutes
100,000	Sunlight	Sunny day (Under direct sunlight on a summer day)	126 minutes	6 minutes	2 minutes

V187

Illuminance lx (LUX)	Light source	Condition (Example)	Time required for fully charging the watch	Time required for charging the watch to stable hand movement	Time required for charging the watch to last for 1 day
700	Fluorescent light	General offices	100 hours	8 hours	95 minutes
3,000	Fluorescent light	30 W 20 cm	25 hours	96 minutes	23 minutes
10,000	Sunlight	Cloudy day	7 hours	24 minutes	6 minutes
100,000	Sunlight	Sunny day (Under direct sunlight on a summer day)	3 hours	6 minutes	3 minutes