AS 1511 Brand AS Caliber 1511 Size 13 1/2 Function Version Hands 0,80x1,50 Stem 7215 Stem (subs.) Stem (2 pce) Balance staff 31204 Balance staff (subs.) 31502 INCA / 31604 SSR Mainspring (subs.) 1,7x11,5x0,135 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027215705= 1130Escape wheel -pinion straigt piv.920007051130723Balance staff ST -shock-absorber80231204723Balance staff, pivoted80231502