Richard Mille RM02 series skulls! The latest version (the case and the bottom cover are made of the latest technology of nano-TZP ceramics) Note: TZP is a tetragonal zirconia polycrystalline porcelain, low-density wear-resistant friction, low thermal conductivity and other material characteristics; make this bezel and bottom The cover can be specially processed and polished to show a high-brightness rasa arc surface? The movement adopts a highly stable imported 6T51 automatic movement that has a waterproof performance of 100%. In particular, the case has a delicate rasa polishing. Workmanship [color] buckle is also made of first-class fine polished workmanship