Clé De Cartier Cartier’s watchmaking renaissance continues apace with an output that is difficult to comprehend, both in terms of volume and techniques. The easiest way to bring this into focus is to split its watches into fine watchmaking, high jewellery and mainstream pieces, such as the new Clé de Cartier collection. Here, Cartier has re-imagined the crown as a rectangle that is wound in a motion similar to the key of a historic clock or watch. Clé, after all, is French for key. It has a new calibre too, fast rotating spring barrel for maintaining accuracy. The collection should prove commercial, with a strong, uncomplicated presence that adapts to masculine and feminine models with ease.