As new Cartier rose gold and diamond ladies small size American tank watch. 2015 model. This is a late rare version of Cartier's best selling ladies watch which features a solid gold case and folding clasp and unique double diamond set case. It also features a fully faceted diamond in the winding crown which is a hallmark of Cartier's finest jewellery timepieces. The recommended list price of such a watch at Cartier is over £20,000 and our watch, which is supplied with its original Cartier box and paperwork, is available with a saving of circa £10,000.