Hi Whit,
Thank you for your frank opinion.
I'm not looking for prestige, and both brands are clearly unknown where I leave.
Even my Explorer 1 is not so often recognized as a Rolex, it has no rotating bezel (where I leave people sail or dive with a Submariner).
I'm looking for a refined mechanics in a refined case with integrated bracelet. A watch thin and somewhat discreet.
I think that both watches fit that description. The Nautilus is better for the dial beauty and the water resistance. The RO has a more appealing mechanics.
Both watches are worth owning them.
I'd like to get both in fact!
Best
Dje