Ethical conduct should be one of the hallmarks of an auction house that works with valuable items and where provenance is crucial to their reputation.
Clearly AQ doesn't give a crap about any of that. Point noted. Won't consign not buy from them. How do I know as a buyer the watch I'm buying isn't stolen? As long as they get paid seems they don't want to take a position. Sorry AQ. You can't be Switzerland. If you are brokers a deal you have a moral obligation to ensure the ownership is clear.
There could have been so many other ways for them to deal with this They took the easy and cowardly way out.