HATTORY-SEIKO 6020A Exploded diagram Brand HATTORY-SEIKO Caliber 6020A Size Function Version Hands Stem 354-920 = NL Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery MovementsArtno.brandcaliberSizehandsfunctionspecialHATTORY-SEIKO6020A Watchparts Part NocaliberdescriptionoriginalArtno.4016020Winding stem035492098403549204060BCoil -red40029209840400292042116020ROTOR4146920025998.6020MAIN PLATE(PLASTIC)01019209840101920.6020CENTER WHEEL BRIDGE01229209840122920.6020TRAIN WHEEL BRIDGE01259209840125920.6020CENTER WHEEL AND PINION02219229840221922.6020CENTER WHEEL AND PINION02219249840221924.6020FOURTH WHEEL AND PINION02419209840241920.6020Hour wheel02719219840271921.6020Hour wheel02719229840271922.6020Setting lever03839209840383920.6020Battery connection427092098404270920.6020OPEN-CLOSE SPRING81331362.6020BACK PLATE86139952.6020DRIVE WHEEL89995320