Personally i believe that watch collection should have "genetic diversity".
I understand that Ultra thin is Ultra thin, we cannot change its design nor movement, otherwise it is not the Spiritual successor to the original 5402a ,
however, a clever mix and match of the right colours can change the whole thing around, such as the recent Yellow gold green dial special edition jumbo,
I really love that unique design, because it is a jumbo yet it is very uniquely different 