The Rotonde day and night display has a long history in Cartier’s history since the Comet clocks from the 1920s. Launched as part of the Cartier Privée Paris Collection (CPCP) from 1998-2008, the legendary Rotonde Jour et Nuit was available in pink gold and white gold. Infused with modern finesse, the elegant timepiece features an enticing display of the passage of day and night. Artistically decorated with silver guilloché, the day section depicts a sun as the hour with beams, as the day goes by the transition of the night sky takes over with the moon flowing across the night sky. Featuring the blue Breguet style minute hand, passage of minutes is powered by a retrograde mechanism. The timepiece also bears the classic secret Cartier signature sitting discretely at the 10 o’clock Roman numerals. Sophisticated and now a classic, the present example in attractive condition is offered by its original owner. Furthermore, the present lot is accompanied with its original certificate and signature red CPCP presentation box, certainly a novel model when it comes to collecting vintage Cartier timepiece.