Hello! I was seeking more details about the “new” AP Code 1159 straps as I really like them (to add on other watches). I believe those are actually made of rubber that emulates the structure of a canvas / cordura strap? And the lining is made in soft leat...
Now I know what you mean, I believe I’ve seen a strap like that by Patek where the top part looks like sail cloth while it feels like rubber and the inside lining is black rubber