Less can indeed be more. The Rotonde de Cartier Astrotourbillon Skeleton (cartier.us) is mechanically similar to the Astrotourbillon that the brand released in 2010. But by suspending the movement from just three points—the sculpted Roman numerals 6 and 12 and a bar enclosing the winding stem—Cartier’s designers have accentuated the delicate orbit of the tourbillon cage. The structure is more robust than it appears: According to Cartier, it has passed the same resistance tests as the company’s other tourbillons. The watch is priced at about $195,000.