Large size (~35–38 mm) in 18k yellow gold; automatic calibre (date at 3 on select runs); silvered Roman dial; leather strap. Diabolo de Cartier: rounded case with sculptural, ball‑tipped lugs; silvered or mother‑of‑pearl Roman dial; blued hands; sapphire cabochon crown; sapphire crystal; approx. 30 m water resistance; bracelet or leather/satin strap.