361/362 (SR721) Watch Batteries
The 361/362 button battery is a high drain, medium-capacity cell, typically used in watches with extra functions like calculators and in other small electronic devices. It is a silver oxide cell and replaces the 361, SR721W, AG11, SR58W, RW410, D361, 28053, SB-BK, 362, SR721SW, SR58, RW310, D362, V362(532), 28029, SB-AK watch batteries.
The case dimensions are 7.9mm (diameter) x 2.1mm (height). These cells supply 1.55V at a typical capacity of approximately 23 - 28mAh.