I made another strap change, but still stuck with calf for my 587. I went with a lighter skin that mirrors the numbers and hands colors. Side by side, I’m also including my 372 on JV strap, with the point of consideration made by Sergio being that the JV ...
Your two JV examples are nicely matched to the models. The black JV is an amazing contrast to the gold/tan JV. But it must be out of production since I don’t see it on the Panerai site.