Cartier's 'Ballon Bleu de Cartier' watch has become an icon of elegance and beauty for the Maison, loved for its smooth curves and floating sapphire cabochon crown. Expertly crafted in Switzerland, this 33mm edition has a stainless steel case encrusted with a halo of 50 glistening diamonds. The silvered sunray-brushed dial is set with a constellation of 21 more brilliant-cut stones and features signature blued steel sword-shaped hands that match the crown.