Watch Battery Series 3 GPS 38mm A1847 Real 262mAh Vicedeal Amazon.com: PKCELL 20 Pack SR621sw Watch Battery AG1 Battery 1.5V LR621 15 321 Energizer Watch Batteries SR616SW Battery Cell Walmart.com Energizer 394 380 SR936SW High Drain Silver Oxide Watch Battery, 1.55V. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit 15688_3 Operating Temperature Range: 40 Degrees Celsius to +85 Degrees Celsius Shelf Life: 5 years Leakage Resistance: Anti Leak Design Movement Compatibility: Quartz Swiss or Chinese or Japanese 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: 15688_3_K0051407