Renata 377 SR626SW Silver Oxide Watch Battery Long Life, Swiss Made AG4 Amazon.com: Energizer 377 376 Watch Batteries (Pack of 5) : Health Amazon.com: Energizer Watch Electronic Batteries, 1.55 Volts, 377, 2 Amazon.com: 10 Pack SR626SW Watch Batteries 377 376 AG4 LR626 1.55V 10X AG4 377A 377 LR626 SR626SW SR66 LR66 Alkaline Button Cell Watch SR626SW Watch Batteries 377 5 x Renata 377 Swiss Made Equivalent to. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit 26R37 Operating Temperature Range: 40 Degrees Celsius to +85 Degrees Celsius Shelf Life: 5 years Leakage Resistance: Anti Leak Design Movement Compatibility: Quartz Swiss 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: 26R37_K0068755