PATEK PHILIPPE, 3520D Clou de Paris Round yellow gold wristwatch. White dial Hand-wound mechanical movement. Leather strap Diameter: 32 mm. The watch is in working order at the time of writing this catalogue; however, we cannot guarantee its future performance. As the watch has not been tested over an extended period, we cannot guarantee the functioning of the movement or its power reserve. We recommend that the watch be serviced.