The Cartier Due 3 Days has a polished case and is available in two diameters (42 mm and 45 mm), either in rose gold or stainless steel. The sandwich dial (black for the two stainless-steel Cartier Must 21 replica watches, anthracite gray for the two rose-gold versions) comes with a sun-brushed finish and beige Super-LumiNova. The Cartier Due 3 Days 42 mm in stainless steel is powered by the hand-wound P.1000 manufacture caliber; the rose-gold version by the skeletonized P.1000/10. The case measures 10.5 mm in height and is equipped with a sapphire crystal both on the front and on the back.
The larger Cartier Due 3 Days 45 mm in stainless steel is powered by the automatic manufacture caliber, the rose-gold version by the skeletonized featuring a 22k-gold oscillating weight and clous de Paris decoration. Thanks to the use of a decentralized, bidirectional micro-rotor, the case measures only 10.7 mm in height. The power reserve is 72 hours, as indicated by the model name. The Cartier Due collection is scheduled to be in stores starting in mid-September; list prices are $8,100 for the hand-wound in steel, $21,100 for the rose-gold replica Cartier Must 21 watches. The prices for the larger automatic versions are $10,700 for steel and $25,600 for the rose-gold version.
Richard Mille RM 052 Skull is a limited edition of Cartier Must 21 fake watches, introduced at SIHH 2012. The watch had a price of $500,000 when it was first announced. The watch main feature is the skull-shaped grade 5 titanium baseplate at the center. The skull is also integrated into the movement: the upper and lower jaws hold the ruby of the tourbillon cage, and the back of the skull is also the movement center bridge. The four bridges that connect the movement to the case also a form a skull-and-crossbones pattern.