A balloon floating poetically in the sky inspired Cartier's 'Ballon Bleu de Cartier' watch. This image is conveyed by its domed 18-karat rose gold (750) case that glistens with 47 brilliant-cut diamonds and is nestled with a polished sapphire cabochon crown in a cutaway. Crafted in the Swiss mountain city of La Chaux-de-Fonds, this intricate mechanical reference is self-winding, meaning it's powered by the natural movements of your wrist throughout the day. Elegant touches like the sunray-brushed silvered dial and burgundy alligator strap will make it a timeless collector's item and heirloom.