MST 520BrandMSTCaliber520Size11 1/2FunctionSCVersionHands0,90x1,50Stem5926Stem (subs.)Stem (2 pce)5926 wd (2806)Balance staff28618Balance staff (subs.)Mainspring (subs.)1,30x10,50x0,11Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.205BCenter wheel drilled + cannon96300203520210= 522Third wheel5837227BSweep second wheel611596300227520242BCannon pinion with driver527496300242520250BHour wheel H = 130474796300250520401BWinding stem28148025926404Winding stem -mouv.part8035926407BClutch wheel315596300407520410BWinding pignon298396300410520705BAnkerrad96300705520710BPallet fork -pinion 1 lower end-piec.- 680596300710520723Balance staff ST -shock-absorber80228618