Ballon Bleu

The Cartier Ballon Bleu in stainless steel (Ref. WSBB0040) is one of the most recognized silhouettes in modern horology, celebrated for its signature floating crown guarded by a graceful arc — a design that has become an icon since its 2007 debut.

Powered by Cartier's in-house Calibre 1847 MC automatic movement with a 42-hour power reserve and beating at 28,800 bph, this 40mm reference offers a compelling blend of refined engineering and timeless Parisian elegance. The silver dial with Roman numerals and sapphire crystal maintain the collection's classical vocabulary, making the WSBB0040 a versatile piece equally at home in a seasoned collection or as a first serious luxury watch.

As a current-production steel Ballon Bleu, this reference consistently holds strong desirability among collectors who prize Cartier's design-forward legacy.