LANDERON 522 Brand LANDERON Caliber 522 Size 13 1/2 Function Version Hands 0,90x1,50 Stem 7437 Stem (subs.) Stem (2 pce) Balance staff 32707 Balance staff (subs.) 33210 INCA Mainspring (subs.) 1,35x11,5x0,13 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027437723Balance staff ST -shock-absorber80232707723Balance staff, pivoted80233210