elements of these Cartier timepieces--which appear in the stylish time-only 21 Must de Cartier and the overtly sporty 21 Chronoscaph watch--are enlivened by an alluring combination of materials and sublime finishing details. With its modern design and versatile aesthetic qualities, the Ligne 21 de Cartier collection demonstrates the evergreen ability of Cartier to boldly define itself in each luxury genre.