BATTERY / BATTERY LIFE / ACCURACY

Battery life and its accuracy vary depending on the type of your watch. Check the case back of your watch to identify the type of watch.

Type of watch: The first four digits of the caliber number of your watch (Ex.8J81 - 0000)

Cal. NO	Battery (SB-)	Battery Life	Loss/Gain
1E70	AB	Approx. 2 years	±15 secs. per month
2F70	AB	Approx. 2 years	±15 secs. per month
2J80	A6	Approx. 2 years	±10 secs. per year
2J81	A6	Approx. 2 years	±10 secs. per year
4J80	AR	Approx. 2 years	±10 secs. per year
4J81	AR	Approx. 2 years	±10 secs. per year
4J85	AF	Approx. 2 years	±10 secs. per year
4N70	AR	Approx. 3 years	±15 secs. per month
5A70	AB	Approx. 2 years	±15 secs. per month
5A74	AB	Approx. 2 years	±15 secs. per month
7371	AF	Approx. 2 years	±15 secs. per month
8J80	AJ	Approx. 3 years	±10 secs. per year
8J81	AJ	Approx. 3 years	±10 secs. per year
8J82	AJ	Approx. 3 years	±10 secs. per year
8J86	AJ	Approx. 3 years	±10 secs. per year
8N70	AT	Approx. 3 years	±15 secs. per month
8N81	AT	Approx. 3 years	±10 secs. per year
9581	AJ	Approx. 3 years	±10 secs. per year

The battery life is the estimated life for a watch with a new battery installed. The battery in your watch at the time of purchase was inserted in the watch at the factory for performance checks. It may run down earlier than the above-specified period.

When the battery nears its end, the seconds hand moves at two-second intervals instead of normal one-second intervals. The watch remains accurate while the seconds hand is moving at two-second intervals.

The accuracy is under the condition that the watch is worn on the wrist in a normal temperature range between 5°C and 35°C.

Loss/Gain is determined per year; i.e., each month does not lose/gain the same number of seconds
(e.g. One month = 2 secs., another month = 1sec., etc).

Operational temperature range is －10°C～＋60°C (14°F～140°F).