Hello! I have a question. Is it normal for my watch to have a yellow "date (calendar)" while the dial is white? Is it possible that he turned yellow because of the time? The watch is from 1986.
I am no expert but It looks like the dial has been changed in the past. If the watch is from 1986 it should probably have the T SWISS MADE T dial.
Here I found another one for sale, identical to mine, writes only Swiss Made. So is the dial original or not? https://www.bobswatches.com/rolex-datejust-16013-white-index-dial.html
From a quick google search all the 1986 datejust seem to have the T markings. I don’t know when Rolex stopped using tritium on their dials. That watch seems to have been extensively restored so a dial swap is not out of the question either. Sorry I can’t be of more help, I am just giving my 2 cents.