FELSA 4520BrandFELSACaliber4520Size6FunctionVersionHands0.50x1.00Stem5037Stem (subs.)Stem (2 pce)Balance staff26406Balance staff (subs.)Mainspring (subs.)1,4x6,0x0,07Mainspring (subs.)BatteryMovementsArtno.brandcaliberSizehandsfunctionspecialFELSA452060.50x1.00o. SC152000ETA244260.50x1.00o. SC160852RONDA10323 3/4x60.40x0.80o. SCH1= 1.03,= RL 732 ZW2 WatchpartsPart NocaliberdescriptionoriginalArtno.105Barrel bridge210BDouble third wheel and pinion920002104520240BCannon pinion H = 185920002404520250Bhour wheelH= 110920002504520260BMinute wheel920002604520401Winding stem8025037407Clutch wheel920004074520410Winding pignon920004104520425BClicking spring920004254520443Setting lever assembled920004434520445BSetting lever jumper combinded920004454520705Escape wheel -pinion straigt piv.920007054520710Pallet fork -pinion 1 lower end-piec.920007104520723Balance staff ST -shock-absorber802264061496Oscillating weight axle025998