HATTORY-SEIKO 7S55 Exploded diagram BrandHATTORY-SEIKOCaliber7S55SizeFunctionVersionHandsStem351-260Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.4017S55Winding stem035417698403541764017S55Winding stem03512609840351260.7S55MAIN PLATE(PLASTIC)01003049840100304.7S55MAIN PLATE(PLASTIC)01003059840100305.7S55CENTER WHEEL AND PINION02240789840224078.7S55FOURTH WHEEL AND PINION02410109840241010.7S55Hour wheel02714839840271483.7S55Setting lever03830709840383070.7S55DATE DIAL08782709840878270.7S55DATE DIAL08782719840878271