Ballon Bleu de Cartier watch, 36 mm, mechanical movement with automatic winding. Steel case, fluted rose gold 750/1000 crown set with a cabochon synthetic spinel. Rose gold 750/1000 bezel and silver guilloché dial, set with 69 brilliant-cut diamonds totaling 0. 77 carat. Blued-steel sword-shaped hands. Sapphire crystal. Rose gold 750/1000 and steel interchangeable bracelet. 12. 1 mm thick. Water-resistant up to 3 bar (approx. 30 meters/100 feet).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.