HATTORY-SEIKO 6S77BrandHATTORY-SEIKOCaliber6S77SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.4016S77Winding stem03514309840351430.6S77DATE DIAL08783449840878344.6S77DATE DIAL08789629840878962