HATTORY-SEIKO 2G78BrandHATTORY-SEIKOCaliber2G78SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.4012G78Winding stem03512269840351226