Cartier’s rich horological heritage dates back to 1847, and its cult timepieces have been adored for over a century. Despite its release only 14 years ago, the Ballon Bleu watch is undoubtedly on the same trajectory. Defined by curved lines and the blue sapphire cabochon safely nestled in its side, the exceptional piece is rendered in stainless steel with a luxurious bracelet strap.