I love the way you elaborated your choice.
And I love to see you loving these modern FFs so much, too.
Tough call, my friend... If I had to be pragmatic, then to think that I may be stuck in a desert island for a long time, then I would take a Rolex. And a modern one, just to be sure that I will not have issues for a very long time.
If I could listen to my heart, then a vintage Rolex, or a vintage FF...Or a vintage diving JLC.
Hmmm, tough call!
Best,
Nicolas