Factory C/ClEAN Rolex ROLEX Sky King series, super cost-effective new Air King watch, watch code Logo dial! Three-dimensional digital scale, super Swiss luminous, 6-digit crown logo (integrated without calendar gap), the Air King pays tribute to the golden age of aviation industry in that era. British aviator Charles Douglas Barnard was the One of the aviation pioneers set many flight records. He once said of the Oyster watch, "This watch has excellent performance and is especially suitable for flying. I plan to wear this watch on all long-distance flights in the future." Air The Air King watch embodies the unique connection between Factory R and the aviation industry. This was the golden age of the aviation industry. The performance of aircraft was improving with each passing day, routes continued to expand, and long-distance flights were also introduced. The Air King watch is equipped with a distinctive black dial, 3 Extra large Arabic numerals are marked at , 6 and 9 o'clock, and the minute scale is prominently displayed so that the time can be read clearly while sailing. The words "Air-King" on the dial use a font specially designed for the original watch in the 1950s. Designed specifically for the watch, the Oyster steel case with a diameter of 40m is equipped with an Oyster solid link strap and a personalized black dial, allowing the Air King to continue the original Rolex Oyster watch. Watch code XN779633, watch buckle code, 738, Customized three-in-one code with NFC high-end version,