Clock & Watch Batteries SR621SW Watch Batteries 2 x Seizaiken 364 Equivalent Cell Button Replace watch battery for js25 WatchUSeek Watch Forums Watch Battery Size Chart SizeChartly. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit J2. 035. S Operating Temperature Range: 40 Degrees Celsius to +85 Degrees Celsius Shelf Life: 5 years Leakage Resistance: Anti Leak Design Movement Compatibility: Quartz Swiss Movement Water Resistance Compatibility: Suitable for 50m Water Resistant Watches Mercury Free: Environmentally Friendly (0% Hg) High Low Temperature Tolerance: Extended Performance in Extreme Climates SKU: J2. 035. S_K0052655