5 Different Types of Watch Batteries H2 Hub Renata 379 Watch Battery High Quality, Efficient, Long Life Strip of Amazon.com: DURNERGY 394 Watch Battery 10pack, 1.5 Volt Alkaline LR936 Renata 399 Swiss Made Watch Battery 399 (Sr927Sw) Walmart.com. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit 3899 B 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: 3899 B_K0064032