TISSOT 27B-621BrandTISSOTCaliber27B-621SizeFunctionVersionHandsStem7922Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027922721Balnace cplt. - SSr98800721271