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, 40 mm, Manufacture mechanical self-winding movement, calibre 1847 MC. Steel case, key set with a synthetic spinel, silvered flinqué dial with sunray effect, blued-steel sword-shaped hands, sapphire crystal and case back, black alligator-skin strap, steel double adjustable folding buckle. Case thickness: 11.76 mm. Water-resistant to 3 bar (approx. 30 metres / 100 feet).