During the 1920s, Cartier incorporated a variety of stones and materials in their repertoire, ranging from lavish diamonds, to nephrite, quartz and enamel work. During this period, Cartier created clocks of the utmost quality, whether it be a miniature, desk, or even a Mystery clock.

This desk clock features a nephrite hard stone case with four cabochon sapphires set on either side, which really evokes the aesthetic of the art deco period. The dial is designed with an intricate guilloché pattern, and the ring is fitted with enamel, evoking the colour of the sapphires.

One should marvel at this clock's excellent state of preservation. The dial is free of visible imperfections, and the nephrite hardstone is completely intact. Many surviving examples are very worn, yet this clock is very stunning and even retains its original hands.

The case is further stamped with Cartier numbers and signed Cartier Paris.