PreIs that pre or post 1991?
Is that pre or post 1991?
https://www.bobswatches.com/rolex-blog/resources/rolex-start-using-sapphire-crystal.html
Beautiful watch, I don't have a gold one (yet).
Currently I have replaced two sapphire crystals on two separate watches, one had a chip that broke off an edge, another had a full length scratch across the face. Their not cheap, on my Citizen it will cost $125 for the crystal, and a little more for the polishing job.