Rolex Super Universe Chronograph Daytona m116518ln-0039V6 upgraded version. 40MM diameter. 1 Upgrade the angle of the ring mouth and the font size and the font color silver gray is more consistent with the original version. 2: The literal nails are brighter and the luminous is stronger and the luminous time is longer. 3: The angle of the teeth of the case handle is more three-dimensional and smoother. 4 : Upgrade the cover of the 4130 movement, which is more realistic than the original version.