I personally like the absence of seconds hand and thinner profile of the 3700.
Of course, the two-tone aesthetic gives it a very different identity, far less casual and probably not as easy to wear as the steel 5711A.
Anyway, I like the closeness to the original 1976 design and model.
Here are a few photos linked to the original Nautilus.
Congratulations again.
Best, Emmanuel 



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