HATTORY-SEIKO 6S99BrandHATTORY-SEIKOCaliber6S99SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.4016S99Winding stem03514309840351430