To have managed to collect all four shows not just passion....but determination too! Massive congratulations to you.
I often think of the 5131s in a similar way to the 5070s in the sense that there is only one iteration of each metal and each metal has a very distinct personality. The 5131s do, to me, have very distinct personas.
I had a similar feeling on the 5131P when I saw it. It has something different to the the other metals and the dial does seem to have something that little bit extra. Also interested to hear your view on the platinum bracelet. When I first saw it on a picture, I had to really think about it. But I do think it is quite important for the watch.
Thank you for sharing this unique shot.....and again....congratulations
Best
Joe