It bugs me that pretty much all the watches on these auctions are described as such...
Erm. Did it belong to Jackie Onassis because otherwise I call bullshit.
Ahhh hang on, there is an Elvis connection?
The Omega Museum was the eventual winner of the watch.
http://watchesbysjx.com/2018/05/elvis-presleys-watch-becomes-the-most-expensive-omega-ever.html
Based on the engraving Elvis received the watch as a gift, but did "The King" actually wear the watch?