Comments:
It's very difficult to say, and not our place to determine that.
I would have to have the piece in hand.
From your pictures, the watch "looks" real. The accessories appear normal. Perhaps try emailing all of the specific numbers to your local UN service center and seeing if they can provide additional information about the history of the piece.
From your pictures, the watch "looks" real. The accessories appear normal. Perhaps try emailing all of the specific numbers to your local UN service center and seeing if they can provide additional information about the history of the piece.