I wanted to get the 960 as well and I saw the same post on Reddit about the blue color on the bezel completely vanishing after 3 months. Looking at the 438 now.
Let's clarify since apparently people have trouble identifying PAMs. The PAM in the complaint is not a PAM960, it is a PAM616. If that was a PAM960, I would call BS on that post. The watch is just out a month, how could he have a PAM960 in his possession two months before the rep was released? Now, is the blue paint on the 0-15 minute markers on the bezel fading? So far I have not seen a post by anyone. So same factory but different watch model with different paint color on the bezel. We have no way to know if the paint used on the PAM616 bezel is the same as the one on the newer PAM subs unless again someone posts some pictures.