This is an authentic PATEK PHILIPPE 18K Yellow Gold 25mm Calatrava Quartz Watch 4819/5. The watch is crafted of 18 karat yellow gold and features a white dial with black hour markers, sapphire crystal, mesh strap, and a quartz movement. This is a classic watch with the elegant style of Patek Philippe! Follow this item for alerts. Patek Philippe is a registered trademark of Patek Philippe. FASHIONPHILE is not affiliated with Patek Philippe.