Interesting topic for the day, Nilo.
And great photos of that UN!
As I find most watches busy, I would never expect that the ROC CoS would fit in at my place.
I actually saw it up to several times without taking any special notice of it.
Suddenly one day I had it onmy wrist, and the owner was not allowed to leave anywhere until the purchase was arranged and it was mine... 
When this said, I still have a very ambivalent relation to all RO´s, even the plain ones. -
HAGWE!
S.