I like the look of these! I also worry about the wear on the movement as well. I am yet to take a rep to a watch shop for a repair and I'm concerned when I eventually do they may take it off me.
Good point about the additional wear to the movement. You can get a similar non-winding box for displaying.
As far as servicing goes. No one in UK is going to confiscate your watch.
I wouldnt go into an AD for a service mind you.
Find a local watchsmith and ask if they would repair/service asian movements. Most will, and most have probably had a few in their hands at some point.
I had a local goldsmith/watchsmith make an adjustment to an bracelet for me. An Rep Constellation that i could not figure out removing a link.
He kept saying how good it looked and that the links were the same pain in the ass on the Gens.