The Rotonde de Cartier Mysterious Day & Night Watch brings together for the first time two historic Cartier complications: the mystery movement and the day/night indicator, which made their debut in 1912 on two pendulums. A sun, moving from left to right thanks to a mystery movement, appears at the top of the dial, later giving way to the moon. The sun and moon in turn indicate the hours of the day and night, while the retrograde minutes are displayed at the bottom, with the two different sectors highlighted by two types of finish. The case is in pink gold and the movement is the manual calibre 9982 MC.
