ZENITH 4033BrandZENITHCaliber4033Size13 1/4FunctionSC-DD-AUT-CHR-TourbillonVersionEL PRIMEROHandsStem5824Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.166= 400Casing clamp10.16.0560.4009950016640052632= 400screw for date unlocking yoke11.13.9866.4009955263240059602/1Bscrew11.22.9830.STAN995596204021