Floating like a balloon and as blue as the sapphire 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 sapphire cabochon winding mechanism guarded by an arc of precious metal the convex curves of the case guilloch 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 watchmakingst