I appreciate the kind words. To address some questions/comments: The vintage watch is a ref.2526 in yellow gold from 1958. Of course, the main attractions of the 2526 are that it contains Patek's first automatic winding movement (caliber 12-600AT) and, perhaps even more importantly, the double-baked porcelain enamel dial. It is difficult to capture in a picture, but the yellow-beige patination on the dial is very rich. The original PP style crown is another great touch. The watch came with a modern buckle, but my outstanding local AD was able to find the original style for me.
The 5127, in rose gold, has tempted me for quite a while. My AD said that they aren't making 5127's any longer, that all the caliber 324 movements were going into other models. To Mike's point; I agree that the platinum case with black dial is outstanding, but I believe that was only done with reference 5107 and not 5127. These watches are nealy identical, with really only subtle differences in the bezel.
I also had occasion to see and try on the new 5123 Calatrava. It left me cold in pictures, but really surprised me in the metal. It has a unique way of how the lugs meet the case body that boosts the presence on the wrist. I was impressed.
Thanks again for looking, and best to all.
Steve