MST 521BrandMSTCaliber521Size11 1/2FunctionSC-CLDVersionHands0,90x1,50Stem5926Stem (subs.)Stem (2 pce)5926 wd (2806)Balance staff28618Balance staff (subs.)Mainspring (subs.)1,30x10,50x0,11Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.205= 520Center wheel drilled + cannon96300203520210= 522Third wheel5837227= 520Sweep second wheel611596300227520242= 520Cannon pinion with driver527496300242520401Winding stem8025926404Winding stem -mouv.part8035926407= 520Clutch wheel96300407520410= 520Winding pignon298396300410520425= 520Click236796300425520723Balance staff ST -shock-absorber802286182543BIntermediate date wheel No. 263860259982566BDate corrector3940963025665212575BDate jumper spring2477963025755212576Date jumper963025765212632BDate unlocking yoke332496302632521
