140PCS Round Tactile Button Cap Kits 9.58*5.1mm for 12*12*7.3mm Tact Illuminated push button 22 mm silver contact 82 6152.2134.B001 EAO 20 to 150PCs 2 6MM Resin Pearlescent Real Corrugated Button Four Eye H928f4fcff8584360b61d5d6fc97e96b0B.jpg. GENERAL SPECIFICATIONSProduct: Watch Battery Only Battery Cell Composition: Silver Oxide Recommended Uses for Product: Watch Battery Count: 1 Cell Model Compatibility: Fit R21540742 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: R21540742_K0063762