The Cartier Ballon Bleu de Cartier 42mm watch (reference WGBB0030) is a luxurious timepiece that seamlessly blends elegance with functionality. Housed in a 42mm 18K rose gold case, it features a silvered guilloché and lacquered opaline dial with Roman numerals and blued-steel sword-shaped hands. The watch is powered by the self-winding mechanical movement Caliber 1847 MC, offering a 42-hour power reserve. It is complemented by a brown alligator leather strap with an 18K rose gold deployant buckle. With a water resistance of 30 meters, this timepiece is both stylish and practical.