This platinum tourbillon pocket watch by Patek Philippe is not just precious because it’s one of a kind, it also wrote history when it participated in the 1933′s Geneva Astronomical Observatory Timing Contest and afterwards set a precision world record which remained unbeaten for several years. The unique piece was originally created for the ambitious collector Henry Graves, therefore it bears the Grave family’s coat-of-arms and motto esse quam videri, which just furthermore raises the watches worth.