The Sony Murata 393 / 309 is a silver oxide button cell with long lasting power for small electronics such as watches. This cell is compact with flat terminals and features 1.55 volt power with a capacity of 75mAh. High capacity makes this 393 battery last longer than competing brands, keeping your low drain devices powered up. As a watch battery, the Murata 393 is compatible with a wide range of popular models making it a great pickup for home or professional use.
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