Item #: 1238644 This is an authentic PATEK PHILIPPE 18K White Gold 30mm Calatrava Manual Winding Watch 3513/1. The watch is crafted of 18 karat white gold and features a polished round case, silver dial, silver hands, black hour markers, textured milanese band, sapphire crystal, and a manual winding movement. Follow this item for alerts. Patek Philippe is a registered trademark of Patek Philippe. FASHIONPHILE is not affiliated with Patek Philippe.