HATTORY-SEIKO Y975BrandHATTORY-SEIKOCaliberY975SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Y975Winding stem03517939840351793401Y975Winding stem03517949840351794