AS 1644 Brand AS Caliber 1644 Size 11 1/2 Function CLD Version Hands 0,70x1,30 Stem 7308 Stem (subs.) Stem (2 pce) Balance staff 28704 Balance staff (subs.) 29108 Mainspring (subs.) 1,6x9,0x0,10 Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027308723Balance staff ST -shock-absorber80228704723Balance staff, pivoted80229108