The Certificate of Origin can add a bit of value, but the Insurance Valuation showing the Replacement Value doesn't mean anything, it's a 27 year old value. Nice watch.
Assuming that the documents are legit, I think that the historical information and authentication has some value. I am not familiar enough with VC to know if those documents are authentic. Obviously, the way they are stapled together does not inspire confidence, but maybe that's how VC did things in the 90s.
I expect that the document is original, though I rather doubt that V&C would still produce such valuations. In any case, I don't think that it would add anything to a sale, as there are too many associated variables, particularly after a ~25 year period, e.g. market and currency fluctuations, condition changes, etc.
This price is not important, it is more about the certificate.
Ah, well in that case, I would be shocked if it were not authentic. The more recent valuation show the same serial numbers as the earlier certificate, and the only incentive that I can imagine for the latter having been forged, would have been if the case and movement didn't match.
Sorry, I did not notice that the certificate booklet has the same date. I still see no evidence to suggest that they are other than original. And it should very easy to confirm, by simply asking V&C to confirm that a watch with those serial numbers was serviced by them in Geneva in 1996.
Again, there really wouldn't be any incentive to forge such documents unless the numbers didn't match.
I would email their store in Geneva, with the image of the valuation, and ask them to confirm that the watch was indeed serviced at that time.