This DiW custom Sky-Dweller blue-black replica is the crystallization of black technology in the modified watch industry. The DLC coating is treated with 72 hours of plasma deposition, presenting a matte gun blue color that is exactly the same as the original. Laboratory data shows that its hardness reaches 2200HV. The dial uses five-axis CNC to carve three-dimensional time scales, and each facet perfectly reproduces DiW's iconic multi-angle refraction effect. The specially adjusted 9001 movement achieves an amazing accuracy of ?15 seconds per year, and the damping feeling when the crown rotates is only 3% different from the Swiss original. The carbon fiber texture of the strap lining is restored 1:1 using nano-imprinting technology, and even the DiW laser anti-counterfeiting mark on the back of the lugs has achieved a precision match of 0.01 mm. This is not an ordinary replica, but a mechanical artwork that pays tribute to the custom watch culture with German Seiko - when you press the dual time zone adjustment button, the crisp "click" sound will tell you what the true craftsmanship is.