Amazon.com: DEVMTO LQ S1 Smart Watch Battery, 380mAh 3.7v Compatible Backup Factory Mobile Battery For Samsung Galaxy J7 Nxt, SM J701F, SM LeWy 6 Swiss Men's Watch J7.139.L Jowissa SR621SW Watch Batteries 2 x Seizaiken 364 Equivalent Cell Button AG11 LR721 Alkaline Button Watch Battery 1.5V 500 Pack FREE H282ac1eb9e0c483785474ec531a30fc79.jpg. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit J7. 011. L 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: J7. 011. L_K0052561