Currently using both of them alternating depending on the mood.
I usually wear the RO for office as it goes under the shirt sleeve and formal enough for business meetings and client calls.
As for the Aquanaut , they are great on dress down Friday as this goes well on jeans but still looks elegant.
If you need to decide for only one, I will recommend the RO as being more flexible , the rubber strap of the Patek does not make it in my definition of business wear.
Both are fantastic pieces.
Cheers
Noel