The Cashmere Calf is a fantastic strap and I was far as I know not in another color available.
The color of the strap becomes over time darker and develops a nice patina.
This strap would look fantastic on a 372, I believe this strap was actually part of the standard straps that came with the Fiddy.
Dutchman, Panerista since 2014 and learning
PAM389 and PAM372 and a bunch of straps