MST 424 Brand MST Caliber 424 Size 12 1/2 Function Version Hands 0,80x1,50 Stem 6605 Stem (subs.) Stem (2 pce) 6605 (Pos) Balance staff 29113 INCA Balance staff (subs.) Mainspring (subs.) 1,5x11,0x0,12 Mainspring (subs.) Battery Watchparts Part NocaliberdescriptionoriginalArtno.210BThird wheel and pinion581796300210424224BSecond wheel -long lower pivot6095401Winding stem8026605404Winding stem -mouv.part8036605415= 360Ratchet wheel96300415360425Clicking spring2305430422Click spring240096300430422443BSetting lever assembled369396300443424705BEscape wheel -pinion straigt piv.6614.596300705424723Balance staff ST -shock-absorber80229113