Hallo Matthias.
After having done a lot of research after your post I am happy to inform this forum that my watch has never been sold at auction!!!!!!!

According to the seller, it has been privately owned since new. If you look closely at the watch in the auction, it is obviously not the same watch. The dial is different and the condition is not nearly as good as mine. I guess the number listed is wrong and it is not no:57 as mine is.

This should make things clear. I am very protective of my name. Not that it would have been wrong to try to sell it at a higher price than at auction, but this is NOT the case.

Rasmus