Greetings. I happen to own a VERY nice example of this watch, the Cartier Stepped Tank Hicham Jumbo XL. I inherited it from my fathers estate. This watch actually has three different reference numbers due to it being produced in three different boutiques; London (reference number 471), Paris (reference number 1543) and New York (reference number 15716). All three versions are under one model number - 55122115. Hope this clears up any confusion. Below photo is my watch (London 471).
