FELSA 21-27BrandFELSACaliber21-27Size6FunctionVersionHands0,50x1,00Stem5017Stem (subs.)Stem (2 pce)Balance staff26204 / 26205Balance staff (subs.)26206 INCAMainspring (subs.)1,35x5,0x0,06Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8025017723Balance staff, pivoted80226206723Balance staff ST -shock-absorber80226204