Nice catch for you, my friend. Love the signature Paris roof top photo with the E.T. in the background, but I like even more the family shot of the three vintage GMTs -- that one captures the fascination with these vintage Roxes, no?
I have not yet been bitten by the Rolex bug, which is a good thing for my finances!
But I think I begin to understand the deep fascination collectors have for Rolex, Blancpain and Panerai -- but particularly the vintage Rolexes. in addition to having an appreciation for timepieces in general, one must build a collector's knoweledge of the nuanced differences between one vintage GMT, for instance, and another. As you said, it takes a lot of expertise to recognize the telltale signs of an authentic and original vintage GMT, especially as Rolex makes alterations to its designs at only a glacial speed. So, the authentic details can be very subtle. I think this is, in part, what must appeal to collectors of this species, much like a collector of first edition books, endlessly searching for the correct and true first editions, recognizable from other subsequent printings by only the tiniest details. I think this must be also a similar phenomenon for the Paneristi -- beyond the pure joy to be found in the Luminor and Radiomir designs, there is a deeper joy in the acquired expertise to recognize the often subtle details that distinguish one PAM from another, details that would elude a more casual observor.
Your joy in this passion is always brimming -- infectious,
As always, happy collecting, my friend,
respo