Last Summer I traveled to the Grand Canyon with a RubberB strap on my Rolex GMT-C. The experience I had with that strap is posted here.
This Summer I am in Rome with an Everest prototype strap for Rolex. It is working out well!
As you can see, after the 17+ hours of travel time, this was my first order of business.
Yes, I have the bezel set of UTC -8 so that I can track my home time.
I plan on posting more images and review in the coming weeks...
[Btw, Everest is a sponsor of this particular WatchUSeek forum]