Duracell Products D303357PK Button Cell Silver Oxide Calculator & Watch Proven Watch Battery 647 For Citizen 295 6700 MT416 G620M 670M movement watch rechargeable Watch Battery Replacement Sizes Chart PDF Physical Sciences Amazon.com: PKCELL 20 Pack SR927SW 395 Watch Battery 1.5V LR927 Longines Watch Battery Replacement YouTube. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit 647 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: 647_K0066654