I would be more concerned about the type of gold plating. It can be all sorts of different shades. Some looks like 14 carat and some looks like 24 carat. Some use real gold plating that wears off very quick and other factories like BP use PVD plating with titanium nitride that is very tough industrial coating that will last for years and years. If you want a really good day date get a BP Factory. They probably have the most accurate color of gold and it’s also PVD plated. You may as well just buy from a well known factory like Clean, or VSF or BP then you are getting the best. If you try to save money with a new or unknown factory then you are risking getting a much lower quality watch. Especially when it comes to gold plating, you want to stay away from anything that seems too cheap. You get what you pay for in most cases.
this is a BP DD40 that I just sold and the gold color was almost exactly the same as Rolex 18k yellow.