Cartier Rotonde de Cartier Astromystérieux Replica.Such early 20th century clocks used transparent crystal discs to move hands which otherwise appeared to be floating. In this instance, mystery translates into both horological elegance and beauty.For this newest “interpretive tourbillon mystery,” Cartier returns to its popular Rotonde case style for a piece that combines these two worlds of interest. Suspended between what are actually three transparent sapphire crystal discs is more or less the entirety of the movement system that make a full rotation on the dial each hour.
Use of the term “tourbillon” is theoretically a stretch, as in the most technical of senses, there isn’t a balance wheel and escapement system which revolves on its own axis within a cage. Rather, the entire movement including the escapement, mainspring barrel, and gear train revolves on an axis point once each hour. You can actually see that the mainspring barrel itself is physically connected to the minute hand, while at the opposite end is the balance wheel. The hands themselves are thus not “mysteriously” mounted, but in the case of the 
A series of delicate mechanics and 188 ball bearings exist in the periphery of the 43.5mm-wide Rotonde case – which for this particular Cartier Replica Watches model is produced in 950 palladium. This mechanical support network allows for all the movement to turn, but more importantly, allows for the user to rely on the traditional crown to both wind the movement and set the time. Cartier no doubt needed to design a novel system to ensure ample shock protection as well as a new type of winding limiter to ensure the movement is not overwound.
The movement, which is in-house made at 