At the same time on a well known internet website there are around 150 Daytona Valjoux for sale, and some are here since months or years...
No one seriously believe that an auction wil lead to results which 2,3 or 5 times the high estimation on every lot, a buzz was created good job.
And that happened only Christies; results at Sothebys and Antiquorum were not crazy.
But if you say that's it's just clever marketing, then Christies is then to be the best place to sell your watch by far... and the worse to buy
cheers
François