HATTORY-SEIKO 4633A Exploded diagram Brand HATTORY-SEIKO Caliber 4633A Size Function Version Hands Stem 354 040 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery MovementsArtno.brandcaliberSizehandsfunctionspecialHATTORY-SEIKO4633A Watchparts Part NocaliberdescriptionoriginalArtno.401BHandsetting stem354-04098403540404000BElectronic module4001-0440259984060Coil -red4002-005025998