Watch Battery Murata 397 is a silver oxide low drain battery 1.55 V. Watch Battery 397 measures 7.9X2.6mm. Murata 397 is mercury free and has a capacity of 32 mAh. Since 2017, Sony watch batteries were manufactured by Murata. The very same high-quality batteries are available today—only under the Murata brand. Surpassing production of over 10 billion silver oxide batteries, Murata is recognized as The Global Leader in both the OEM and Replacement watch battery markets.
Interchange: Renata 397, Energizer 397, Maxell SR726SW, Varta V397, Rayovac 397, Duracell D396/397, Timex N, Citizen 280-28, Seiko SB-AL, I.E.C SR726 (SR59).