The 348, or SR421SW, is a popular Silver-Oxide cell commonly used in watches, with a shelf life of 5+ years. Other applications may include calculators, film cameras, medical instruments, cash registers, or FA Instruments (Measuring Instruments, Onboard Microcomputers, Sensors).
Specifications
Chemistry: Silver Oxide
Voltage: 1.55V
Capacity: 12mAh
Diameter: 4.8 mm
Height: 2.15 mm
Also Known As: 280-77, 348, SB-A6, SR421, SR421SW, V348, GP348, V348