Product: Sony 379 (SR521SW) 1.55V Silver Oxide 0% Hg Mercury Free Watch Battery (2 Batteries)
Brand: Sony
379 Sony Battery is used to replace SR521SW style batteries commonly used in popular watch brands such as Casio, Timex, Swatch and Fossil, or other devices like calculators, cameras and medical instruments. This battery has a nominal capacity of 16 mAh, which is a measurement of energy capacity of the battery.

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