With the Clé de Cartier collection, the prestigious French manufacturer has adopted a minimalist approach to design, creating uncluttered, stylish timepieces with a classic appeal. Placing a strong emphasis on proportion, clarity, comfort and pure timekeeping function, the watches have a round, smooth appearance, with no sharp edges, and they utilize a new 1847 MC movement, developed in-house. Meanwhile, the collection gets its name from the revolutionary "clé" crown, which is set with a sapphire crystal. The men's watches have a comfortable 40mm case size, while ladies have the option of 31mm and 35mm cases.