I've had this vintage piece from 1954 serviced, bought a new OEM strap, got an abstract from the archives, and even have the original box. The only thing I was missing was the original buckle which is a non descript buckle made by AW Depose. After looking for one for many years I decided to finally get a modern verison from the boutique.
I'm not a vintage collector but I've heard that not having the original buckle doesn't make or break the watch. Also when VC takes in a vintage piece to resell I believe they add the modern buckle so that made me fell much better about this decision!
Tony