Cartier Ballon Bleu watch, 42mm, automatic winding mechanical movement. Steel case with a yellow gold 750/1000 fluted crown decorated with a synthetic spinel cabochon. Silver guilloché opaline dial with Roman numerals and blued steel sword-shaped hands. Sapphire crystal. Steel bracelet with yellow gold 750/1000 central links. Date window at 3 o'clock. Case size: diameter: 42.1mm, thickness: 13mm. Water resistant up to 3 bar (~30 meters). Features: