Silver oxide low drain battery 1.55 V. Watch Battery 381 measures 11.6X2.1mm. Renata 381 has a capacity of 50 mAh. Must purchase in increments of 10.
Interchange: Energizer 381, Maxell SR1120SW, Varta V381, Rayovac 381, Duracell D381/391, Citizen 280-27, Seiko SB-AS/DS, I.E.C SR1121 (SR55).
Renata batteries
