Patek Philippe Grand Complications Perpetual Calendar (5496P001) self-winding automatic watch features a 39.5mm platinum case surrounding a silver dial on a brand new black alligator strap with a platinum Calatrava Cross deployant buckle. Functions include hours minutes seconds day retrograde date month perpetual calendar and moon phase. This watch comes complete with box and papers. We back this watch with a 15-month warranty! Since 1839 without interruption Patek Philippe has been perpetuating the tradition of Genevan watchmaking. As the last family-owned independent watch manufacturer in Geneva Patek Philippe enjoys total creative freedom to entirely design produce and assemble what experts agree to be the finest timepieces in the world - following the vision of its founders Antoine Norbert de Patek and Adrien Philippe. Thanks to its exceptional know-how Patek Philippe maintains a tradition of innovation hailed by an impressive repertoire of more than 80 patents. The major Patek Philippe collections include the Calatrava Nautilus Aquanaut Gondolo Golden Ellipse and the ladies Twenty-4.