MST 450BrandMSTCaliber450Size8 3/4FunctionVersionHands0,70x1,20Stem5415Stem (subs.)Stem (2 pce)Balance staff25803 INCABalance staff (subs.)Mainspring (subs.)1,2x7,5x0,08Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.195BCore and ratchet wheel, riveted-150896300195450200BCenter wheel + cannon pinion562396300200450210BThird wheel582696300210450401Winding stem8025415443BSetting lever96300443450445Setting lever jumper combinded96300445411445BSetting lever jumper combinded96300445450705BEscape wheel -pinion straigt piv.663096300705450721Balance cplt. -regulated96300721450723Balance staff ST -shock-absorber80225803