Really it is the seller who should be answering these questions for you because without seeing the inside, we can only guess.
First of all, it's a Seamaster not a Speedmaster as you indicated. It is not from 1945 if it's a legit Seamaster, because that would be too early. Maybe you meant to type 1954. It might be a reference 2802 base on the shape of the case. If so, it would have a cal 471 movement and would be smaller than the usual Seamaster. Smaller watches are generally less desirable these days. The sweep hand is too short, so it's either broken or replaced. The dial is pretty badly damaged (blistered, stained, peeling) and it looks like some of the lume dots have been replaced in a sloppy way. There are other condition issues as well, and they all impact the value.
I wouldn't be interested in this watch, but perhaps if it's extremely cheap and you like it, it might be an ok way to dip your toe in to vintage watches. If you indicate the asking price, you will probably get more engagement regarding valuation.
