Introducing the Rolex Oyster Perpetual Cosmograph Daytona 40mm 116503-0009, a luxurious timepiece that combines the elegance of 18k yellow gold with the durability of 904L steel. The 40mm case is crafted from a single block of steel and features a screw-down back and crown for triple waterproof protection. The fixed 18k yellow gold bezel is engraved with a tachymetric scale, while the scratch-resistant sapphire crystal showcases a stunning dark mother-of-pearl dial. The dial is adorned with gold crystal subdials and diamond hour markers, adding a touch of sophistication to this already impressive watch.At the heart of this watch is the Rolex calibre 4130 self-winding movement, known for its precision and reliability. The chronograph function is displayed through a central second hand, a 30-minute counter at 3 o'clock, and a 12-hour counter at 9 o'clock. With a power reserve of approximately 72 hours, this watch will keep ticking for days on end. The 18k yellow gold Oyster bracelet is made up of flat three-piece links, combining 904L steel and 18k yellow gold for a striking and durable design. The folding Oysterlock buckle includes an Easylink 5mm comfort extension link for a perfect fit. And with a waterproof rating of 100 meters, this watch is ready for any adventure.Crafted from the finest materials, this watch is a true testament to Rolex's commitment to quality and precision. The case, bracelet, bezel, and clasp are all made from a combination of yellow gold and steel, creating a harmonious and luxurious design. With functions including hours, minutes, seconds, and chronograph, this watch is not only a statement piece but also a practical and reliable timekeeper. Elevate your style with the Rolex Oyster Perpetual Cosmograph Daytona 40mm 116503-0009.