LONGINES 17.68BrandLONGINESCaliber17.68SizeFunctionVersionHandsStemStem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)2,30x14,50x0,16Mainspring (subs.)SpezialBatteryWatchpartsPart NocaliberdescriptionoriginalArtno.770BMainspring t-hook954007701768