Amazon.com: POWEROWL SR626SW 377 Watch Battery 24 Pack High Capacity Unwavering Button Cell Battery For Watches 778 AOOOWER AG7 LR927 395 Watch Battery Alkaline Button Cells Batteries for Button and Watch Batteries Best Prices Ozbatteries Australia 10 x 1.55V Button Coin Cell Watch Battery Batteries AG5 AG 5 LR750 10 x 1.55V Button Coin Cell Watch Battery Batteries AG4 LR66 LR626 377. 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