If you’re checking a Rolex before selling or borrowing against it in San Diego,...
https://www.start-bookmarks.win/before-you-sell-or-get-a-loan-on-your-rolex-ask-for-a-written-offer-and-all
If you’re checking a Rolex before selling or borrowing against it in San Diego, start with the reference number engraved between the lugs at 12 o’clock