LONGINES 878.4BrandLONGINESCaliber878.4Size16 3/4FunctionVersionHandsStem10015Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.26037.9 ABCMinute wheel40137.9 ABCWinding stem8021001541037.9 ABCWinding pignon70537.9 ABCEscape wheel -pinion straigt piv.710Pallet fork -pinion 1 lower end-piec.721Balnace cplt. -for shock-absorber954007218784