Good luck with your search, in the interim consider crown and buckle Chevron strap. Similar style, I'm also in the lookout for one of these and got the Chevron as a stop gap
Thanks for your answer. I've seen the crown and buckle one, but it is a strange sort of black and navy I don't really fancy, but I'll consider it.
I'd highly recommend Blushark NATOs, but no gold line, only white https://www.blusharkstraps.com/collections/black/products/orca-oreo-watch-band-strap
Thanks for your input ! I already have such straps, but I'd like the original Tudor one with the gold line now.