Amazon.com: YKM 377 SR626SW Watch Battery LR626 376 V377 377a AG4 1.55V Exelent 10 Pack SR626SW Wrist Watch Battery Cell LRAGButton Batteries 200 Pcs AG4 LR626 377A SR66 1.5V Alkaline Button Cell Watch Batteries 2 x Duracell 377 1.5 V Silver Oxide Watch Battery Batteries SR626SW AG4 2 x Duracell 377 1.5 V Silver Oxide Watch Battery Batteries SR626SW AG4. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit 15677_6 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: 15677_6_K0051423