HPI00683Ref

The Cartier Ballon Bleu series, launched in 2007, is recognized for its smooth, pebble-like silhouette and a protected crown that notches the dial. The 46mm Extra Flat model arrived in 2011, joined by the 40mm variant in 2015. Reference HPI00683 features a 46mm white gold case housing the hand-wound caliber 9452MC with flying tourbillon, further embellished with 114 baguette-cut diamonds on the case (4.80 carats), 120 on the dial (2.52 carats), and 344 on the bracelet (27.80 carats).