Cartier's Rotonde de Cartier is a classic design with a round case and straight lugs, while still showcasing the brand's signature elements. This collection features watches with added complications. One standout piece is the Rotonde Astromystérieux, unveiled at SIHH 2016. It takes the 'mystérieuse' watch to the next level, with not only the hands but also a large part of the movement appearing to float in space. The platinum case measures 43.5mm and is adorned with 84 baguette-cut diamonds on the bezel and lugs, a beaded platinum crown with a brilliant-cut diamond, and a platinum dial with 120 baguette-cut diamonds. The platinum bracelet completes