This modest and minimalist ultra-thin version of the Ballon Bleu de Cartier watch affirms the signature style of an iconic timepiece of the Maison. A mere 6.9 mm thick, the slender case houses the unstoppable mechanics of the manual winding movement. The pure refinement of this accessory and timepiece lends a distinctive elegance to the wrist.

Ballon Bleu de Cartier watch, ultra-thin, 40 mm. Manufacture mechanical movement with manual winding, caliber 430 MC. Case in 18K rose gold, fluted crown set with a sapphire cabochon, silvered opaline dial, Roman numerals, sword-shaped hands in blued steel, sapphire crystal, strap in brown alligator skin, ardillon buckle in 18K rose gold. Diameter: 40 mm. Thickness: 6.9 mm. Water-resistant to 30 meters.