AS 1858BrandASCaliber1858SizeFunctionVersionHandsStem7331Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem80273311496= 1712Oscillating weight axle9200149617122633= 1711Date unlocking yoke spring9200263317115443= 1916Screw for setting lever jumper920054431916