This is an authentic PATEK PHILIPPE 18K Yellow Gold Diamond 38mm Annual Calendar Automatic Watch Brown. The watch is crafted of 18 karat yellow gold and features a grey sunburst dial with gold hour markers, sapphire crystal, brown alligator strap, exhibition case back and an automatic movement. Follow this item for alerts. Patek Philippe is a registered trademark of Patek Philippe. FASHIONPHILE is not affiliated with Patek Philippe.