Cartier Ballon Bleu 40mm watch – Reference WSBB0040 is a modern icon of elegance, combining Cartier’s signature design with everyday versatility. Crafted in stainless steel, the 40mm case features the distinctive rounded silhouette and integrated crown guard that define the Ballon Bleu collection.
The refined silver dial with classic Roman numerals enhances its timeless aesthetic, while the sapphire crystal ensures durability and clarity. Powered by the reliable Cartier Caliber 1847 MC automatic movement, it offers a 42-hour power reserve and smooth performance.






