364/ SR621SW
Maxell Watch Battery SR621SW is a silver oxide low drain battery 1.55 V. Watch Battery SR621SW measures 6.8 x 2.1mm. It is mercury free and has a capacity of 19 mAh.
Interchange: Energizer 364, Renata 364, Varta V364, Rayovac 364, Duracell D 364, Timex T, Citizen 280-34, SB-AG/DG, I.E.C SR621 (SR60)