I was really looking at those 2-tone and full yellow gold older references of the Nautilus lately. They have a charm I'm very attracted by.
I would have add a full yellow gold 3700 as well (but I imagine not the same budget either).
The last one has a dial color combination we don't see anymore in the Nautilus line and I think it is a stunning one.
I'm also not really a 2-tone watch guy but I'm as surprised as you were: it looks fantastic. With the Nautilus' shape, even a more stylish color combo leaves the watch elegant.
If you get it I'll be very happy to see the pictures you have the secret about!
So thanks a lot for sharing I think it will interest many members here.
Cheers, Mark