Watch Batteries 2pc 10pk SR626 Silver Oxide 1.55V Watch Battery Compatible with 280 39 Watch Batteries Just Electronics Amazon.com: Enyuly 270mAh Replacement Battery for Watch 5 40mm SM R905 Amazon.com: Energizer Watch Electronic Batteries, 1.55 Volts, 377, 2. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit R13775252 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: R13775252_K0063848