AS 1859 Brand AS Caliber 1859 Size Function Version Hands Stem 7331 Stem (subs.) Stem (2 pce) Balance staff Balance staff (subs.) Mainspring (subs.) Mainspring (subs.) Battery WatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem80273311496= 1712Oscillating weight axle9200149617122633= 1711Date unlocking yoke spring9200263317115443= 1916Screw for setting lever jumper920054431916