Watch Batteries Energizer 394 380 SR936SW High Drain Silver Oxide Watch Battery, 1.55V High Quality 420mAh Battery Sony GB S103532350100 for Sony SmartWatch 1.55 Volt Watch Battery 394 Replaces SR936SW: Amazon.co.uk: Fashion 50 pcs Sz LR48 393 AG5 L754 SR754W Alkaline Watch Battery Walmart.com How to get to the battery? : r watchrepair. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit R53491153 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: R53491153_K0063681