This Audemars Piguet pocket watch boasts a dial plate cut from 2K gold sheet, worked and engraved by hand to depict a famed vintage motorcar. Its platinum case features 32 baguette-cut and 60 brilliant-cut diamonds (weighing .62 carats in all). A sapphire window in the case back opens on the mechanical movement’s intricate beauty. (AUDEMARS PIGUET “Vintage Collection”)