OH MY! A true grail amongst grails, the Invention Piece 1 (IP1) is one of the most sought-after watches of the century. To make this one even more interesting, it was made specially for an industry titan, Jean-Claude Biver. I missed it at auction a few years ago and finally jumped at the chance to grab it. Now is your chance

Factory serviced a few years ago and complete. This one is ready to be a part of a serious collection.