I wouldn't as I like the slimness and simple dial of my 5711/1A. I am however considering trading my 5711/1R for a 5990/1R if the AD ever gets me one as that way I get a steel piece and a full rose complication piece without having to add any more cash!
Of course if you love the 5980 and are meh about the 5711 then of course go for it :-)
|