is the main reason for people opting for 3940G instead of 3940P. You could probably replace the solid P case back with a G display back though. Heresy if you ask me...
A guy on the rolexforums reported similar issues in 2019 or 2020. His 5711 developed recurring brown spots like rust on both sides of the bracelet exactly where the pins are covered up with metal on the non-removable links. In the end he got a new watch from Patek but I am not sure they ever told hi
In my view, the white date window steps in nicely for the big white 3 numeral. In contrast, a color matched date would look like a black (or blue) hole in the dial, as if they forgot the big white 3 numeral there. Trying to hide the date window makes it stand out more in many cases and reduces the l