HATTORY-SEIKO 8M48 Brand HATTORY-SEIKO Caliber 8M48 Size Function Version Hands Stem Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.4018M48Winding stem03511489840351148.8M48MAIN PLATE(PLASTIC)01000869840100086.8M48TRAIN WHEEL BRIDGE01251869840125186.8M48CENTER WHEEL AND PINION02210909840221090.8M48FOURTH WHEEL AND PINION02411019840241101.8M48Hour wheel02712789840271278