Sequential serials
Numeric sequences can indicate an approximate production year, although the mid-century reset creates overlapping numbers.
Watch & Bullion Collector Tools
Rolex Serial Number & Year FinderRolex Serial Finder
Estimate the production period of a Rolex from its case serial number and understand what the result can tell you about the watch.Estimate your Rolex production year from its serial number.
Independent collector guidance · Dates are approximate
Production year finder
Enter the serial number
Use numbers and letters only. Spaces, commas and hyphens are removed automatically.
Randomised serials
Introduced around 2009–2010. Cannot be reliably dated from the serial alone.
Your result will appear here Enter the number exactly as it appears on the case, rehaut or original papers.
Estimated production period
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Collector perspective
The number is only the beginning.
A serial can establish a likely production period. The reference, dial, bezel, bracelet and provenance complete the picture.
Three eras
Three eras of Rolex serial numbering
Rolex moved from sequential numbers to letter prefixes and later to randomised alphanumeric serials. The system determines how precisely a production period can be estimated.
Letter-prefixed serials
Prefixes including R, L, E, A, P, K, Y, F, D, Z, M, V and G indicate an approximate production period.
Randomised serials
Modern eight-character serials cannot be reliably decoded into a production year from the number alone.
Finding the number
Where to find it
The location depends on the age of the watch. Avoid removing a bracelet unless you have the correct tools and experience, as the lugs can easily be marked.
The serial is traditionally engraved at six o'clock, behind the bracelet. The reference is normally found at twelve o'clock.
On later models, the serial is engraved on the inner flange between the dial and crystal, usually aligned at six o'clock.
The serial should also appear on the original guarantee papers or warranty card. Check that it matches the watch.
Collector methodology
Why the result is an estimate
The serial dates the case. The watch tells the rest.
Rolex has not published a public serial-to-year database. W&B therefore gives a conservative production period where recognised collector sources differ.
Case · Dial · Hands · Bezel · Bracelet · Movement
Letter prefixes, circa 1987 to 2010
| Prefix | Approximate period |
|---|---|
| G | 2009-2010 |
| V | 2008-2010 |
| M | 2007-2009 |
| Z | 2006-2008 |
| D | 2005-2006 |
| F | 2003-2005 |
| Y | 2002-2004 |
| K | 2001-2003 |
| P | 2000-2001 |
| A | 1998-2000 |
| U | 1997-1998 |
| T | 1996-1997 |
| W | 1995-1998 |
| S | 1993-1994 |
| C | 1992 |
| N / X | 1991 |
| E | 1990 |
| L | 1989-1990 |
| R | 1987-1988 |
Numeric serials, circa 1964 to 1987
| Approx. starting serial | Year |
|---|---|
| 1,000,000 | 1964 |
| 1,105,000 | 1965 |
| 1,275,000 | 1966 |
| 1,485,000 | 1967 |
| 1,710,000 | 1968 |
| 1,945,000 | 1969 |
| 2,240,000 | 1970 |
| 2,590,000 | 1971 |
| 2,890,000 | 1972 |
| 3,200,000 | 1973 |
| 3,570,000 | 1974 |
| 3,865,000 | 1975 |
| 4,115,000 | 1976 |
| 5,085,000 | 1977 |
| 5,430,000 | 1978 |
| 5,865,000 | 1979 |
| 6,205,000 | 1980 |
| 6,560,000 | 1981 |
| 7,130,000 | 1982 |
| 7,600,000 | 1983 |
| 8,375,000 | 1984 |
| 8,785,000 | 1985 |
| 9,155,000 | 1986 |
| 9,860,000 | 1987 |
The mid-century serial-number reset
After the original sequence approached one million, Rolex restarted the numbering. Many six-digit serials can therefore correspond to two possible periods. The finder reports both where appropriate. Interior case-back marks and reference-specific details may help narrow the result.
Common questions
Rolex serial-number FAQs
A serial number is useful evidence, but it is not a complete authenticity or originality check.
Can a Rolex serial number confirm authenticity?
No. Counterfeit or altered watches can carry plausible numbers. Authentication requires examination of the complete watch, including the case, dial, movement and components.
When did Rolex start using randomised serial numbers?
Rolex began phasing in randomised eight-character serial numbers around 2009–2010. Unlike earlier serials, these cannot be reliably decoded to determine a production year from the number alone.
Is the production year the same as the year of sale?
No. A watch may have remained with a distributor or retailer before being sold. The papers record the retail event, while the serial provides an estimate of the case-production period.
Why can different guides give different years?
The available charts are collector-compiled rather than an official Rolex production database. Production boundaries overlap, components could be held before assembly and published estimates can differ by one or two years.
Does the serial date the dial and bracelet?
Not by itself. Dials, hands, bezels and bracelets may be period-correct, later service replacements or fitted at another point in the watch's life. These require separate reference-specific analysis.
Private valuation
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Watch & Bullion is an independent specialist and is not affiliated with Rolex SA. Rolex is a registered trademark of Rolex SA.
