LANDERON 502 Brand LANDERON Caliber 502 Size 14 1/2 Function Version Hands 0,90x1,50 Stem 7554 Stem (subs.) Stem (2 pce) Balance staff 31714 Balance staff (subs.) Mainspring (subs.) 1,50x11,5x0,135 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027554723Balance staff ST -shock-absorber80231714