HATTORY-SEIKO 8M44 Brand HATTORY-SEIKO Caliber 8M44 Size Function Version Hands Stem Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.4018M44Winding stem03511489840351148.8M44MAIN PLATE(PLASTIC)01000869840100086.8M44TRAIN WHEEL BRIDGE01251869840125186.8M44CENTER WHEEL AND PINION02210909840221090.8M44FOURTH WHEEL AND PINION02411019840241101.8M44Hour wheel02712789840271278