If you’re checking a Rolex before getting a quote in San Diego, the reference...
https://www.sierrabookmarking.win/if-you-re-in-san-diego-and-considering-a-loan-on-your-rolex-compare-the-total
If you’re checking a Rolex before getting a quote in San Diego, the reference number is typically engraved between the lugs at 12 o’clock, under the bracelet. Don’t force the bracelet off just to find it; a watchmaker can check safely