In my opinion the risk, is to buy by a watch a surplus price, in my opinion the real value of this watch is not a same if the seller can confirm the origin of the modification, is not a same a 5004R, or another watch with correctily certificate, with a bill of the modification, with a letter, from the manufacture, a 5004 modificate without a real papers to confirm d, origin.
and another thing, Antiquorum and enothers auctions housse, MUST TO EXPLAIN THE MODIFICATIONS IN THE DESCRIPTIONS if not the buyer can pay to much for a watch, and fill has been deceives