HATTORY-SEIKO V531BrandHATTORY-SEIKOCaliberV531SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401V531Winding stem03517029840351702