Rolex Reference number Guide: The Go-to Resource List
All Rolex watches have two engravings on the metal of its case. These engravings are what are known as the reference number and the serial number. The serial number can be found on the 6 o’clock side of the case of the watch, but from 2010, Rolex started engraving the serial number of their watches on the rehaut instead, which is the inner metal ring below the crystal. During a period, though, some Rolex watches got the serial number engraved both on the case and on the rehaut, but on modern Rolex watches, the serial number is only engraved on the rehaut.
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