379 (SR521) Watch Batteries

The 379 Watch Batteries are a slim, energy-efficient replacement battery for multiple models of watch batteries. These direct replacements have a small footprint and low capacity, perfect for watches with few functions. The 379 button cell directly replaces many types of batteries, including the 379, SR521, SR521SW, SR63, RW327, D379, V379(520), 28059, and SB-AC.

Experience reliable power with these 379 Watch Batteries, which feature silver oxide chemistry for enhanced performance. The small case is 5.8mm in diameter and 2.1mm thick, and provides a voltage of 1.55V with a typical capacity of 15mAh. Enjoy larger life cycles and greater dependability.