Rolex serial & reference numbers explained
Last updated June 1, 2026
Every Rolex carries two key numbers: a reference number that identifies the model, and a serial number unique to the individual watch. The reference is engraved between the lugs at 12 o’clock; the serial sits at 6 o’clock — and, on modern watches, on the rehaut.
How to find your Rolex serial number
1.Check the rehaut (inner bezel ring)
On Rolex watches made from around 2005 onward, the serial number is engraved on the rehaut — the inner ring between the dial and crystal — at the 6 o’clock position, with "ROLEXROLEX" repeated around the rest.
2.Look between the lugs
On older models, remove the bracelet to see the engravings between the lugs: the serial number at 6 o’clock and the reference number at 12 o’clock.
3.Confirm against the papers
The reference and serial are also printed on the warranty card and, on newer watches, encoded in the card’s details. Matching numbers across watch and papers is a good authenticity sign.
Reference vs serial — what each tells you
The reference decodes the watch: model, case metal and bezel (e.g. 126610LN = steel Submariner Date, black bezel). The serial identifies the specific example. Together with the warranty card they confirm what the watch is and that its parts belong together — a core part of authentication. For buying safely, see our guide to buying a pre-owned Rolex.
Frequently asked questions
Where is the serial number on a Rolex?
On Rolex watches from roughly 2005 onward, the serial number is engraved on the rehaut (the inner ring around the dial) at 6 o’clock. On older watches it sits between the lugs at 6 o’clock, visible once the bracelet is removed.
What does a Rolex reference number mean?
The reference number identifies the exact model, case material and bezel — for example 126610LN is a steel Submariner Date with a black bezel. It is engraved between the lugs at 12 o’clock and printed on the papers.
Can you tell the year from a Rolex serial number?
For watches up to around 2010 the serial maps to a production period. From about 2010 Rolex randomised serials, so you can no longer date a modern Rolex from the serial alone — use the reference, papers and card date instead.
Looking for a specific reference?
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