The Cartier Ronde de Cartier, known in some markets simply as the Ronde Solo de Cartier, is the brand's essential round-case dress watch — a clean, symmetrical expression of classic watchmaking values presented with Cartier's characteristic refinement. The Ronde's design is deliberately restrained: a smooth round bezel, a guilloché or silver-opaline dial with Roman numerals, blued steel sword-shaped hands, and a crown set with a synthetic blue cabochon. The model has been produced in steel, yellow gold, and white gold, in sizes ranging from 29 mm to 42 mm, with quartz and automatic movement options. The Ronde de Cartier occupies an important position in the Cartier portfolio as the round counterpart to the rectangular Tank — offering buyers who prefer circular case shapes access to Cartier's house aesthetic without compromise. Pre-owned Ronde de Cartier references in steel on leather strap are among the most accessible Cartier purchases on the secondary market, making them a frequent recommendation for buyers entering the Cartier universe. The automatic versions with sapphire casebacks add a layer of mechanical appeal. DeMesy & Co. in Dallas has been a source for pre-owned Ronde de Cartier watches, applying expert authentication since 1987.