10 x 1.55V Button Coin Cell Watch Battery Batteries AG4 LR66 LR626 377 Store Home Products Feedback Amazon.com: Energizer Watch Electronic Batteries, 1.55 Volts, 377, 2 S534cbb4ec2ab492c9945f32deac70044S.jpg. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit 15746_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: 15746_6_K0051391