Several owners that received watchs from the first shipment experianced a problem with alignment of the world time ring. I have not seen any postings in quit some time re. problems. Hopefully all problems have been corrected on the later shipments.
It is an incredible watch, it will quickly become your daily wearer.
Also, the yellow EWC was a limited edition of 20, the red, Dubail edition was a limited edition of 50 for a jewelry store in Paris. I have seen both available in the second hand market, with about a $6K preminum.
You can however, order a custom strap from JLC. The one in the photo can also be order in aligator with the red stitching.