i have checked on the website that exclusively for the seamaster 300 and shows the dial is indeed abit odd compare with others. the photo below taken from https://www.omegaseamaster300.com/#watch shows it is original.
The dial is a decent fake, the bezel hands and case are all the common fake ones you see. The movement is the only part of the watch that came from Omega.
These really are a total minefield. I know we all wince at new members asking about real or fake- but this is almost a public service of trying to keep people from supporting sellers like this.