Tim,
Personally, I would pass on it. I say this because I used to have some of these that I got at a mystery auction.
They were mostly in pieces with parts missing. I attempted to restore a couple of them but it was next to impossible to find parts, or info on how to make parts.
Original fusee watches can command extremely high prices, but there were also many cheap copies that were for nostalgia and sale to the general public, this is what this one is I believe, although, not being totally into Swiss euro watches, I can’t tell you with 100% certainty what this particular watch is about.
I can tell you with certainty is that you will waste time and energy trying to fix it, which will result in a bout of heavy drinking with your buds, which will also result in providing a HEAD LIKE A HOLE the next morning 😆
Do a search for fusee watches and you’ll find the info you need to make an informed decision..