The Cartier Clé is a Swiss luxury watch collection introduced in 2015, named after its distinctive key-shaped crown set with a blue sapphire. Defined by its rounded case with fluid lines and minimalistic Roman numerals, the Clé represents Cartier’s modern interpretation of elegance while maintaining the brand’s signature design codes. Available in stainless steel, rose gold, and two-tone variations, the collection is powered by precise Swiss automatic movements, including Cartier’s in-house 1847 MC caliber. Its contemporary shape and ergonomic design make the Clé both refined and comfortable on the wrist, appealing to collectors who appreciate Cartier’s ability to innovate while honoring tradition. Today, the Cartier Clé remains one of Cartier’s most modern watches for sale, admired for its distinctive crown, sophisticated craftsmanship, and understated luxury.