Save over £50,000 on this super rare extra large size Cartier rose gold Ballon Bleu tourbillon watch. This watch which features an exceptional complication, is no longer made and the retail replacement value would be over £90,000. It has a sapphire case back, deploy clasp and the case diameter is 46mm. It is in an unpolished state and was serviced by Cartier in 2017. Available immediately with its original Cartier box and papers.