In my opinion, we need to analyze: Why did the price of watches increase so much? I believe the answer is that they flooded the system with money, and more people could afford to buy them. At the same time, there were more wealthy individuals than in other times – new rich people. And of course, the law of supply and demand, which everyone knows.
What was the fictional part? The fictional part was that too many resellers emerged, hoarding too many watches, and greed pushed them beyond the limits of normalcy.
So the question is, will it happen again? We already know why, so if the "whys" return, it will happen again.