Renata Time Connection II, Inc 393 Renata Watch Battery SR754W Swiss Made 0% Mercury Official Duracell Silver Oxide 309 393 1.5 V 80 Ah Electronic Watch Battery 1 pk Buy KP Original Battery 401522 3.7v 400mAh rechargeable battery for 393 Renata Watch Battery SR754W Swiss Made 0% Mercury Official Watch Batteries Just Electronics. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit 40323 15 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: 40323 15_K0054464