Well it looks like it could be an 810 from the dial layout. To be sure that it's right I would like the seller to provide:
A better dial photo
A photo of the caseback showing the model and serial numbers
A photo of the movement
While they have the caseback off a photo of the inside of the caseback would also be helpful, but not as important on this model where the serial number should be on the outside.
I'm not completely convinced that the hands are original, and the condition of the dial looks very good which is always slightly suspicious when claimed to be original, but let's reserve judgement until we have a better photo. Nothing rare about the dial colour.
Incidentally, there are some 810s on page 20 here (including one similar to this) -
http://www.breitlingsource.com/books_1969.shtmlCorrect movement will be a Venus 179 and value, well not particularly high - maybe GBP500 or so depending on what we learn from better photos.