MST 523-1BrandMSTCaliber523-1Size11 1/2FunctionVersionHands0,90x1,50Stem5926Stem (subs.)Stem (2 pce)Balance staff28618Balance staff (subs.)Mainspring (subs.)1,30x10,50x0,11 AUTMainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8025926723Balance staff ST -shock-absorber80228618