Mens CITIZEN Eco Drive Perpetual Calendar WRISTWATCH E820 S103452 Non Efficient C0820021 Watch Battery For Citizen Eco Solar MT621 295 3300 Capacitor Watch Battery Dead after new capacitor Citizens Eco Drive E812 S030471 : r watchrepair. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit C0820021 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: C0820021_K0054727