The Rolex Cosmograph Daytona Ref. 116509 features a 40mm 18k white gold case and matching Oyster bracelet, exuding a blend of luxury and performance. Its steel-colored sunburst dial is complemented by contrasting black subdials, enhancing legibility and providing a dynamic aesthetic . Powered by the in-house Caliber 4130 automatic movement, it offers a 72-hour power reserve and exceptional precision . The fixed tachymeter-engraved bezel underscores its racing heritage, enabling precise speed measurements. Water-resistant up to 100 meters, this timepiece seamlessly combines technical sophistication with timeless design.