Hi, I have a Timex watch, that I put a nylon, light blue rep stripe Brooks Brothers strap. I also have the original leather watch strap that came with the watch. Watch was worn a handful of times, but it looks and shines like new. No...
The suit is 65% polyester and 35% rayon.
I've seen the real leather ones in the exact style as well, I think Dsquared made similar versions of a few jackets in both leather and polyurethane a few seasons...