This is an authentic TIFFANY & CO 18K Yellow Gold Diamond 25mm Quartz Watch. This classic Swiss made watch is crafted of 18K yellow gold with Roman numeral hour markers and trimmed with small .56 ct diamonds. Wear this watch day or night with the classic style of Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.