I was also following this one on eBay ...... are you the new owner?
Good news the watch is authentic but it’s not without issues.
The dial has quite a lot of deterioration which can be somewhat expected for an original black dial.
Hands are too long, crown is incorrect, case has been polished and movement is dirty/mismatch of colours..
I would get it serviced if I were you.
In addition to what @Noddyman has said, the bracelet looks a bit weird. Would like to see more photos 😀
The non-matching colours in the movement (I only see the rotor having a different shade than the rest) needn't be a serious issue and is probably just due to a replaced part.
The wrong hands will probably be the biggest problem.
Well, the hands should only go as far as to the minute/seconds track or the hour markers depending on which hand we're talking about. Finding the correct ones will be difficult or at least not very cheap. But it will be worth it for the improvement in looks 😀