HATTORY-SEIKO 2M21BrandHATTORY-SEIKOCaliber2M21SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.4012M21Winding stem03511619840351161.2M21TRAIN WHEEL BRIDGE01250709840125070.2M21THIRD WHEEL & PINION02310379840231037.2M21GUIDE PIPE FOR WINDING STEM02380029840238002.2M21FOURTH WHEEL & PINION02410899840241089.2M21Minute wheel02610249840261024.2M21CENTER MINUTE WHEEL02700729840270072.2M21Hour wheel02711899840271189.2M21setting wheel02810139840281013.2M21TRAIN WHEEL SETTING LEVER03910379840391037.2M21END-PIECE FOR CENT. WHEEL04260709840426070.2M21STEM SETTING SPRING06370079840637007.2M21FIFTH WHEEL & PINION07010379840701037.2M21COIL BLOCK400203098404002030.2M21Rotor414603198404146031.2M21INSULATOR421607498404216074.2M21ROTOR STATOR423903898404239038.2M21BATTERY CONNECTION(-)427006898404270068.2M21LIQUID CRYSTAL PANEL FRAME451206498404512064.2M21SHELL COVER UNIT8994073A