HATTORY-SEIKO H557A Exploded diagram Brand HATTORY-SEIKO Caliber H557A Size Function Version Hands Stem 354-655 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.401H557Winding stem035465598403546554060Coil -red4002-65598404002655.H557MAIN PLATE(PLASTIC)01016559840101655.H557CENTER WHEEL BRIDGE01226559840122655.H557TRAIN WHEEL BRIDGE01256559840125655.H557CENTER WHEEL AND PINION02216559840221655.H557FOURTH WHEEL AND PINION02416559840241655.H557Hour wheel02716559840271655.H557Contact spring f. push-button424665598404246655.H557LIQUID CRYSTAL PANEL451052598404510525.H557LIQUID CRYSTAL PANEL451052698404510526