GSW 30 Brand GSW Caliber 30 Size 5 1/2 Function Version Hands 0,60x1,00 Stem 5211 Stem (subs.) Stem (2 pce) Balance staff 28218 Balance staff (subs.) 27904 INCA Mainspring (subs.) 1,4x6,0x0,65 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8025211723Balance staff ST -shock-absorber80228218723Balance staff, pivoted80227904