TUDOR 5813BrandTUDORCaliber5813Size13 3/4FunctionKLS-D-AUT-CHRVersionHandsStem= 5612Stem (subs.)Stem (2 pce)Balance staffBalance staff (subs.)Mainspring (subs.)Mainspring (subs.)BatteryWatchpartsPart NocaliberdescriptionoriginalArtno.401Winding stem8025612