ZF's innovative move [Elegant blues, true to myself] ZF's innovative breakthrough, IWC Da Vinci series IW393402 watch. Satin dark blue, elegant and generous. Shows the gentle and gentlemanly side of men. [Wonderful details] The watch size is 42mmX13.5mm. The color of the dial is infinitely close to the original. ZF has made many revisions to reproduce the original soul. The pot-lid-shaped sapphire glass is coated with a double-sided high-definition anti-dizziness blue film, which is transparent and of excellent quality. [Technical breakthrough] After years of research and development, it has finally achieved success. It perfectly reproduces the IWC self-produced Cal.89361 movement, and all functions are fully realized, including the operating feel and the direction of adjusting the calendar, which is completely consistent with the authentic movement. ZF's innovative masterpiece is born, waiting for all watch friends to appreciate it.