Note; prices subject to change. Movement: The Clé de Cartier Automatic is powered by the in-house Caliber 1847 MC, a self-winding mechanical movement developed by Cartier. This movement boasts a 42-hour power reserve and operates at a frequency of 28,800 vibrations per hour (4 Hz), ensuring precise timekeeping. Design: The collection offers various case sizes, including 31mm, 35mm, and 40mm, catering to both men's and women's preferences. The cases are crafted from materials such as stainless steel, 18K white gold, and rose gold, with some models featuring diamond-set bezels for added elegance. Dial: Dials typically feature Roman numeral hour markers, blued-steel hands, and a date window at 6 o'clock, maintaining Cartier's signature aesthetic. Crown: The distinctive "key" crown is set with a sapphire cabochon, enhancing the watch's unique identity.