The Cartier Ronde Louis Mécanique reference 111810SX is presented in a 42 mm white-gold case with a diamond-set bezel and sapphire crystal. Its round profile is paired with a black leather strap and matching white-gold folding clasp, creating a formal contrast with the watch’s brilliant gem-set surface. The white dial is extensively set with diamonds or gemstones, while the visible Eastern Arabic numerals provide a distinctive regional variation on Cartier’s traditional dial language.
The manually wound mechanical movement is specified with 19 jewels. The dial combines a central time display with a small subsidiary indication positioned toward the left side, while the hands and printed markings provide definition against the pavé background. A sapphire crystal protects the dial, and the white-gold case, diamond-set bezel, black leather strap, and folding clasp bring together the watch’s architectural form and jewellery character. The supplied details do not establish the exact calibre, power reserve, water resistance, production date, limited-edition status, authenticity, originality of the setting, service history, or condition.