Amazon.com: Duracell D364BPK09 Silver Oxide Electronic Watch Battery Durable SID005 Watch Battery Rechargeable 3.7V 400Mah 602035 Polymer Ion Battery 2.0 For DVD SMART Amazon.com: 802035 500mAh Lithium Polymer Batteries for MP3 MP4 MP5. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit SID005 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: SID005_K0051281