LONGINES 290BrandLONGINESCaliber290Size11 1/2FunctionSC-AUTVersionHandsStem6529Stem (subs.)Stem (2 pce)Balance staff30728Balance staff (subs.)Mainspring (subs.)1.20x11.0x0.115x360 AUTMainspring (subs.)820 2964 0BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.227BSweep second wheel95400227290242Cannon pinion with driver260Minute wheel401Winding stem8026529407Bclutch wheel95400407290410Winding pignon025998435Yoke spring95400435290440Yoke spring95400440290443Setting lever assembled445BSetting lever jumper combinded95400445290723Balance staff ST -shock-absorber80230728771BMainspring AUT sliding attachemnet820296401482Ratchet wheel driving wheel1496BOscillating weight axle954014962901535BReversing wheel95401535290