Cartier rarely leans towards complications, and even rarer towards high complications such as the perpetual calendar.. but when they do they succeed and build a watch as beautiful and well composed as this Cartier Tortue ref.2646 from the “Collection Privée” with the charming complication and a case finished in PT950. Platinum models had an approx. 50% premium compared to the prices of “normal” yellow gold models. This very example is in pristine, like new condition with only the lightest signs to it possibly from storage or clients trying it on at the former AD..! The original strap also appears to be unworn proving the “new old stock provenance. It also comes accompanied by the fullset with the rarely seen big “cpcp booklets