Cartier created the W6920097 from the Ballon Bleu collection to illustrate the whimsical wonder of a hot air balloon in timepiece form. The W6920097 has a round-shaped rose gold case that is 33MM in diameter and 9.96 thick with a scratch-resistant sapphire crystal and fluted crown with a fixed rose gold bezel. It has a silver opaline dial with blue steel sword hands and Roman numerals hour markers. The W6920097 is powered by the self-winding 076 which has a power reserve of 38 hours. The case is paired with a brown leather bracelet with a rose gold pin buckle clasp. It has a water resistance of 30 meters (100 feet).