Ballon Bleu De Cartier WatchFloating 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, guilloch 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.