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SR58 Silver Oxide (SR) and alkaline batteries (LR) are commonly used in watches, clocks, timers, calculators, laser pointers, toys, and LED "blinkies". Batteries that meet the IEC 60086-3 standards for watch batteries carry a "W" suffix. The functional differences between silver oxide and alkaline are:
SR58 Silver Oxide and Alkaline Batteries replace: 361, SR721W, SR721SW, V361, L721, SG11/AG11, X, 280-53, SB-BK/EK, SB-AK/DK, V362, S721S, D362, 601,280-29. Dimensions: 7.9 diameter x 2.1 mm height and 23 mAh.
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