I love the Journe boutique in NYC. At least they have samples of about 50 straps for the watches. Still nothing compared to Camille Fournet or ABP in Paris.
I dealt with ABP a few years ago. They were great and their service and products excellent. I was also in Antoine de Macedo's boutique this week. They will also make custom straps but I don't think they make them in house. I do have a few of theirs from a...