Rolex is known for their sturdy and reliable watches and made very few complicated once. One of their most advanced piece is the “Datocompax”, an anti-magnetic piece featuring a chronograph function next to a complete calendar. The history of this achievement starts with the 4768 and was launched already in the 40’s! This reference is the only “Jean-Claude Killy” (the Datocompax is nicknames after the best skier in the history) that is a non-Oyster. This allowed Rolex more room for the case design, resulting in a stunning piece with fancy lugs. This rare watch was produced in very small quantities as probably no more than 200 pieces were ever made.