If you’re checking a Rolex before selling or borrowing against it, the...

https://www.joint-bookmarks.win/if-you-re-considering-a-loan-on-your-rolex-get-the-repayment-terms-in-writing

If you’re checking a Rolex before selling or borrowing against it, the reference number is between the lugs at 12 o’clock, beneath the bracelet. Don’t try to remove the bracelet yourself; a slip can scratch the case or damage a spring bar