HATTORY-SEIKO 7548A Exploded diagram BrandHATTORY-SEIKOCaliber7548ASizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.4001-7537548electronic984040017534060BSpule (rot)4002-75098404002750.7548MAIN PLATE(PLASTIC)01017519840101751.7548CENTER WHEEL BRIDGE01227509840122750.7548CENTER WHEEL AND PINION02217509840221750.7548Cannon pinion02256119840225611.7548FOURTH WHEEL AND PINION02417509840241750.7548Hour wheel02716119840271611.7548Winding stem03726019840372601.7548Winding stem03736179840373617.7548Setting lever03836019840383601.7548DATE DIAL08016029840801602.7548BACK PLATE86139971