Cartier, master of shaped watches, presents the Clé de Cartier. The design is a testament to accuracy, balance and proportion; with soft curves, clean lines and a rounded profile Clé owes its name to its crown. Considerable mastery was required to create fluid lines and a harmonious ensemble. The 35 mm and 40 mm Clé de Cartier models house the calibre 1847 MC, the new Cartier Manufacture Movement. Clé de Cartier watch, 31 mm, self-winding mechanical movement. Steel case. 18K rose gold key set with a synthetic spinel. Silvered flinqué sunray effect dial, Roman numerals. Blued-steel sword-shaped hands. Sapphire crystal. 18K rose gold and steel bracelet. Case thickness: 11. 04 mm. Water-resistant to 3 bar (approx. 30 metres).