It would be a highly unlikely event for me to ever buy or sell watches at Antiquroum, this story just re-confirms my feeling. Years ago a friend of mine bought two watches there at an auction. I know they recommend a full service on every single watch they sell (covering their butt) but they sold him two watches that were not running and completely broken. (One of the watches was a tourbillon so you can imagine what that cost to fix) They gave no mention of those facts in their description of the watches, when my friend complained they said "sorry we recommend all watches sold here get serviced, there is nothing we can do." Needing a service vs selling something broken and in unworking condition are two completely different things. Mentioning that fact within the watch's description would have certainly altered bidding.
What a dirty way to do business and I have never forgotten it. You and I couldn't sell a broken watch without telling the seller first how do they get away with it? In any event I hope the watch ends up back in your hands someday best of luck with your pursuit of its return and hopefully Antiquorum gets whats coming to them.
Tony