Ballon Bleu de Cartier watch, 42 mm, Manufacture mechanical movement with automatic winding, caliber 1847 MC. Steel case, fluted crown set with a cabochon-shaped synthetic spinel, blue dial, Roman numerals, sword-shaped hands, sapphire crystal, blue alligator-skin strap, steel double adjustable folding buckle. Case dimensions: diameter: 42 mm, thickness: 13 mm. Water-resistant to 3 bar (approx. 30 meters).Floating like a balloon and as blue as the cabochon safely nestled in its side, the Ballon Bleu watch by Cartier adds a dash of elegance to male and female wrists alike. Roman numerals are guided on their path by a deep blue winding mechanism. With the convex curves of the case, guilloché dial, sword-shaped hands, and polished or satin-finish links of the bracelet...the Ballon Bleu watch by Cartier floats through the world of Cartier watchmaking. Explore the full Cartier range here.