1.55 Volt Watch Battery 370 Replaces SR920W: Amazon.co.uk: Fashion 1PC ENERGIZER SR920SW SR920W 371 370 1.55V Watch Batteries EX 02 2029 Watch Batteries 20x Energizer 371 , 370 Watch Battery 40mAh 1.55V 1 Blister SR920W. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit R13870152 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: R13870152_K0063836