I'm gonna watch that one. The ad has nice presentation, even if they are only twenty dollar pot metal Hiatts. It has a chance. I wonder if the movie images or tie to Titanic are licensed?
This is not the first listing on fleabay of this item. It listed before and ended without a single bid. I suspect we will see it poke it's ugly high priced head over and over again until someone who has no clue buys it.
The cuffs may be the same as those used in the movie, however looking at the style of the key it is much newer than a Hiatt that would have been used at the time of the disaster.
Honestly, I don't consider these latter day products to be faithful reproductions of the originals, and using them in a theatrical setting could be problematic as the cheap metal is prone to thread stripping.