HATTORY-SEIKO 5E20A Exploded diagram Brand HATTORY-SEIKO Caliber 5E20A Size Function Version Hands Stem 351-624 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery MovementsArtno.brandcaliberSizehandsfunctionspecial164680HATTORY-SEIKO5E20A Watchparts Part NocaliberdescriptionoriginalArtno.2105E20Third wheel231-62198402316214015E20Winding stem0351624984035162440005E20Electronic module4001-616984040016164060BCoil -red4002-61698404002616.5E20MAIN PLATE(PLASTIC)01006209840100620.5E20TRAIN WHEEL BRIDGE01256229840125622.5E20CENTER WHEEL AND PINION02216219840221621.5E20CENTER WHEEL AND PINION02216479840221647.5E20Hour wheel02716219840271621.5E20Hour wheel02716289840271628.5E20Setting lever03836209840383620.5E20BACK PLATE87020283