Cartier Paris Santos Dumont Jumbo Ultrathin Yellow GoldUltra thin driven by PiagetThis is a very desirable cartier Santos Dumont in the jumbo size and ultra thin case. The 27x36mm 18ct yellow gold case is in outstanding condition and is only 4. 2mm thick thanks to the incredible Piaget manually wound movement. The case back is signed Paris. The white dial has painted black Roman numerals, with hidden signature in the VII, and is fitted with blued hands and has a blue sapphire cabochon winding crown. The