Its a bit dark but not too bad.
Anyway, to amplify on my original comments.
I don't think the case dial or movement are VC. VC would never use "fabriqué pour"
The case also lacks all the hallmarks but that in itself is not an issue since often cases were made locally.
The dial is a decent but not outstanding copy of a VC design but they usually had "Vacheron & Constantin and/or the name of the retailer on the dial. The hands and the overall design looks not bad. But watches of this era often were 2 toned and/or had a guillochéd central portion but not always. But the case is likely from the time period that the design represents (1900-1920).
But the movement is another matter.
Whoever, made this clearly knew the designs of the period since the layout of the bridges looks very much like a VC. It looks like the maker tried a bit of "anglage" as well and the results are not too bad. However the bridges at that time were not generally made of steel, but rather brass or were plated. Those few that were made of steel and this was more common later on had "Geneva stripes", which this does not have. I also think that the quality of the steel is much better than was generally available in the early part of the century. The screws are mismatched as well. The seating of the jewels looks a bit rough too.
I was trying to get an idea of the quality of the teeth on the wheels but the lighting isn't good enough to tell.
My guess is that the watch was made by someone as a copy or tribute to VC designs; that the resources available were limited but it was nevertheless a good effort. Perhaps in was a study or a gift for a friend. It does not look like a commercial effort but rather a one-off hand made piece.
That's just my 2 cents worth; just some educated guesses.
But enjoy it! Its still an interesting piece and if it keeps reasonable time, your ahead of the game!