Client sent me this to sell for them.....  I automatically assumed that Rolex refinished the case since its so clean and has a RSC card however if thats the case work they now have the capability to achieve , I for one certainly think they upgraded their process as this case is fantastic.  The tritium dial has great patina and the hands have aged slightly darker and appear original but could have been changed at some point.  The insert is vibrant and slightly faded in a few areas.  The original band is fully linked and tight as can be.  Movement running perfectly.  comes with box, papers, serialized hang tags and RSC card dated from 2020.  beautiful late 80s GMT