Not what I was expecting when I opened the thread.
I know that there is a semi-official Champion bracelet for Speedmasters - I'm not sure of the tradition behind it. What is the designation/model name/identification for that model of Champion?
this is the "semi-official" one that you mention. It started with NASA and the astronauts using it because it would fit over the space suits.
The astronauts were seen in both the JB Champion straight end link
and the Horned (curved) endlink basketweave mesh bracelets.