Pocket Watch Battery: Types, Replacement Guide, and Tips Tick Tock Time Unwavering Button Cell Battery For Watches 778 60 Piece Assorted Super Alkaline Watch Button Coin Batteries Freshly 10 x 1.55V Button Coin Cell Watch Battery Batteries AG7 AG 7 LR927 10 x 1.55V Button Coin Cell Watch Battery Batteries AG6 AG 6 LR920 LR69 10 x 1.55V Button Coin Cell Watch Battery Batteries AG7 AG 7 LR927. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit 778 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: 778_K0066621