This product is based on the original DIW carbon fiber custom model. The case is made of multi-layer forged carbon fiber technology, which combines matte frosting technology with corrosion resistance. The appearance reproduces the Speedster dark night black gradient texture, the three-dimensional time scale is embedded with Super-LumiNova? long-lasting luminous coating, the tip needle adopts red oxidation technology, and it can be read instantly in dark light environment. The core adopts the factory-level customized Cal.4130 movement, the breakthrough column wheel timing structure, the average daily travel time reference is ?3 seconds, the kinetic energy reserve is 68 hours, and the button rebound feedback is consistent with the original. The bezel adopts Mohs porous 9-level ceramic ring, and the sapphire mirror is coated with double-sided anti-infection light film, which is accurate. The strap is made of carbon fiber composite material to restore the resin material into one piece, with embedded concave micropores, and aligned. The original serial number is engraved synchronously, and it has been tested for 20ATM high-pressure waterproofing. There are zero flaws in the process, and it is the first choice for collectors!