Watch Battery Identification:
313, 13, 501, HC, HS-C, WH3, HG13, WM15, MR44, RW52, 280-06
No longer manufactured.Replacement type no. 303
System: MercuryVoltage: 1.35 VoltCapacity approx: 220 mAh Dimensions in mm: Ø 11.60 x 5.40