Diw high-end modified 4130 hollow carbon fiber Daytona (customized version of luminous shell)! ! ! The lightweight Daytona that best showcases track genes so far. The entire case, including the bottom cover, is made of high-composite carbon fiber and luminous powder. The entire watch weighs 47g. The modified fully disassembled dial is matched with the new cal.4130 hollow movement. The avant-garde hollow dial design allows you to see the gears turning! Plus the shell case with luminous effect is very cool.,