50X Energizer 321 Battery Silver Oxide Watch Button Low Drain 1.55V 15 321 Energizer Watch Batteries SR616SW Battery Cell Walmart.com How To Replace An Old Watch Battery at Louise Parker blog Amazon.com: Renata Watch Battery 321 0%Hg Mercury Free X 3 : Health 2 X RENATA 321 Watch Batteries SR616SW Silver 1.55v: Amazon.co.uk. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit 321 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: 321_K0066716