CC, this watch deserved such an in depth review, indeed. Aesthetically and mechanically.
In the early 2000's I bought my first GP watch, and it was a Vintage 1945 Chronograph in white gold, black dial, the only version you didn't post, as far as I remember.
I stuoidly sold it, and a few years after, I went for the steel version:
In between, I was looking for the platinum one, with this superb ruthenium dial, but I never found it. It was part of the " Collection Prestige ". A set I could see in Paris at a GP AD...
Here is something you will certainly like to see, the list of dials. ( Thanks to the Manufacture for sending me this document ).
Yes, this Vintage Chronograph is a joy to own and to wear. And a satisfaction to know that it is 100% in house rectangular shaped chronograph movement, which is pretty rare!