Ballon Bleu de Cartier 42Floating 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. The convex curves of the case, guilloche dial, sword shaped hands, and polished or satin finish links of the bracelet ensure that the Ballon Bleu watch by Cartier floats within the world of Cartier watchmaking.