First, I've always liked the cyclops. So, while I prefer no date at all, if there is one, it might as well be readable.
Second, the red letters are eye-catching and add some pizzaz.
Third, as you noted, the new Sea Dweller has Rolex's top-of-the-line movement, the same as what's found in the Day-Date (please correct me if that's not right). I've fussed with the Day-Date and found the movement to be incredibly smooth and just plain solid-feeling.
I'm ambivalent about the case diameter: 43mm can be good, so can 40mm, so can any number of case sizes so long as it's not too thick. I assume the new and old Sea Dwellers are about equal on thickness (if you could take a thickness measurement, Luca, I'd be interested in knowing).
I predict the new Sea Dweller will be a runaway commercial success. You are fortunate, indeed, to have scored one early.
M4