Apple Watch (41 mm Series 7) Battery Thousands of Watch Batteries at Time Connection II Inc. Time RENATA 3** Watch Battery Cell 1.5 Volt MB03** Renata Watch Battery 319 (SR527SW) Swiss x1 x2 x3 x4 x5 x10 x25 x50 Watch Batteries: A Beginner's Guide To Understanding Types And Sizes. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit R0110027 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: R0110027_K0054342