Rolex 1600 Datejust - Refinished dial/authentic?

[mendacious]

Good afternoon all,

I am very interested in purchasing the watch that I have attached below - a vintage Rolex 1600 Datejust with what appears to be a 'gilt dial'.

I am in the process of purchasing it soon, but just wanted to do my due diligence beforehand. The watch clearly has a 1500 movement which correlates with the reference, so that seems right (and I have also attached a picture of it below). Does it seem right?

I also tried to do some sleuthing online and see if the dial is an aftermarket one or not. Did these come out with a gilt dial like the one pictured?

Thank you very much for your help!