Amazon.com: Energizer Watch Electronic Batteries, 1.55 Volts, 377, 2 2 x Duracell 377 1.5 V Silver Oxide Watch Battery Batteries SR626SW AG4 200 Pcs AG4 LR626 377A SR66 1.5V Alkaline Button Cell Watch Batteries 5PCS Original SR626SW 377 Quartz Watch Battery Batteries for Wrist Amazon.com: YKM 377 SR626SW Watch Battery LR626 376 V377 377a AG4 1.55V. 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