The Ultrathin Tourbillon Red Gold or Platinum, Onyx Edition highlighted one of the thinnest flying tourbillons on the market, offered in 5N red gold or platinum and limited to eight pieces. Its dial revealed the deep intensity of onyx, enhancing the visible rotation of the tourbillon at 6 o’clock. Inspired by the legacy of John Arnold and 18th-century master watchmakers, the piece continued a tradition of technical innovation and fine stone craftsmanship. The 41.50 mm case featured a slim bezel and sapphire crystal, while the main and subdials in polished onyx emphasized a mysterious, refined expression of modern horology.