LONGINES 37.9BrandLONGINESCaliber37.9Size16 3/4FunctionVersionHandsStem10015Stem (subs.)Stem (2 pce)Balance staff44004Balance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem80210015410Winding pignon705Escape wheel -pinion straigt piv.