I had a look at black for some times, but it does not get to me. Somehow it is missing something.
The blue is great, but I think the second dial add too much of thickness and disturbes the finely balanced proportions of the Ultra Thin Reverso.
The Chocolate is amazingly beautiful in the pictures. Hoverever when I
ask myself my key question (Where and when would I wear it?), then I do
not come up with a satisfying answer. So the Chocolate for me remains in
the "admire it on other people's wrist" category.
And then there is the Red playing the tunes of cool, relaxed and noble at the same time. Wear it with jeans, wear it with a Tuxedo. There are not many watches that can pull that off so easily. The dial is simply breathtaking. Red is the one to go for..
Best,
Martin