The Cartier Ballon Blue line was introduced in 2007. It features a smooth, pebble-like case. One of its signature elements is the recessed & protected crown and the ‘dent’ it causes in the dial.Reference WE902049 has a white gold case set with 138 brilliant-cut diamonds totaling 1.94 carats. The dial is set with an additional 517 brilliant-cut diamonds totaling 1.87 carats.
