RONDA 9015 Brand RONDA Caliber 9015 Size Function Version Hands Stem 7248 Stem (subs.) 7249 Stem (2 pce) Balance staff 31710 Balance staff (subs.) 31711 Mainspring (subs.) Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8027248401Aufzugwelle Ersatz8027249723Balance staff ST -shock-absorber80231710723Balance staff, pivoted80231711