The President of the United States used to love wearing the Rolex DD. The Rolex Day-Date series, known for its Sunday calendar function, features the XF3 model, which is an upgraded version of the Blue Balloon Edition DD v3 that has just arrived. This is the most classic series in Rolex, with no equal except for the DD. The Rolex Day-Date series includes models 118135, 118138, and 118139 in all colors.To control the size and thickness to match the official specifications, this version is equipped with a custom 2836-2 automatic mechanical movement, featuring an exclusive one-piece Sunday calendar dial with a quick-jump function. The new 904L stainless steel case is presented with several upgrades: .Upgrade 1: The case lugs are positioned to match the official version and smoothly connect to the bracelet.Upgrade 2: The bracelet features the original color on the front, with the reverse side stamped with code 346763, consistent with the official model, including font and color, and even the bracelet lines.Upgrade 3: The sapphire glass has an anti-counterfeiting logo that is a new type of virtual point identification, printed within the glass.Upgrade 4: The case back features engravings on all four corners that match the original, paying careful attention to the differences in the rose engraving. The brushed and smooth areas of the back are also restored to their original state.Upgrade 5: The side profile of the case matches the official proportions in curvature and overall thickness, with the crown featuring the official double waterproof symbol, and a QR code is also present on the side, consistent with the official version!.The gold model represents the Rolex Day-Date, commonly referred to as DD, with its official full name being Oyster Perpetual Day-Date. The earliest DD models were from the President series because the President of the United States was known for his fondness for the all-gold DD, which led to the watch's fame, thus earning it the nickname President's Watch. .In just four simple words-waterproof, automatic, calendar, and week-this watch's features are clearly defined. Limited stock available, so act quickly! Please recognize our exclusive quality.