Amazon.com: KaPonsec 10 Pack SR626SW AG4 Equivalent 377S 377 LR626 1.5V Durable J3.026.S Pancake Cell For Watches Repairs & Servicing Seiko UK Limited After Sales Service Load cells for all applications from octogon ADI ARTECH 90610 T Universal Pancake Load Cell at 10500 in Ahmedabad S54e964059b444f6d8017a42f627a917cx.jpg. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit J3. 026. S 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: J3. 026. S_K0052605