he Murata 337 (SR416SW) is a 1.55V silver oxide button cell battery. It has the following key specifications:. Voltage: 1.55V. Capacity: 8.3mAh. Chemistry: Silver Oxide. Terminal Type: Pressure Contact. Shelf Life: 5 Years. Packaging: Tear Strip. Brand: Murata. Product Weight: 0.13 grams. Product Dimensions: 1.65mm (L) x 4.8mm (Diameter. Applications: Watches, calculators, medical devices, remote controls, and other small electronics. Reliable, long-lasting power source for compact devices.