Watch Battery Replacement Sizes Chart Full Details Quartz Watch With Battery at Jean Shinn blog 2pcs watch battery 377A LR626W AG4 LR626 CX177 6.8 * 2.6 mm 1.55V Watch Battery Size Conversion Chart at Joseph McClean blog. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit 06 4R5 13 007R 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: 06 4R5 13 007R_K0052498