HATTORY-SEIKO 4K24BrandHATTORY-SEIKOCaliber4K24SizeFunctionVersionHandsStem351-546Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.250Hour wheel271-1994053E22Winding stem03515469840351546