Free tool
Check a Rolex serial number against publicly documented production eras. Runs entirely in your browser — nothing you type is sent anywhere.
This checks the serial's format against publicly documented production eras only. It does not check any watch, and nothing you type here is sent anywhere. Check if this serial appears in the Watch Safe registry, or has been reported stolen.
Rolex encodes two different things in the numbers stamped on a watch: the reference number identifies the model, and the serial number identifies the individual watch and, for anything made before the switch to randomized serials, roughly when it left the factory. Rolex has never published a serial-to-year chart itself, so every version in circulation, including the one below, is reconstructed by cross-referencing production runs and case-back date stamps that collectors have documented over decades. Treat it as a well-informed estimate, not a certificate.
A Rolex serial number identifies an individual watch and, for anything made before 2010, indicates roughly when it was made. It does not authenticate a watch: a serial that falls in the right range shows only that such a number was issued, not that the watch in front of you is the one it was issued to.
| Serial pattern | Approximate year | Basis |
|---|---|---|
| 1964–1969 | 1964–1969 | Cross-referenced across multiple independent published Rolex serial-dating charts and collector/dealer references, none treated as sole authority. Rolex has never published this data itself; the independent charts differ from each other by one to three years at most boundaries, which is why this table uses multi-year bands instead of false single-year precision. |
| 1970–1975 | 1970–1975 | Cross-referenced across multiple independent published Rolex serial-dating charts and collector/dealer references, none treated as sole authority. Rolex has never published this data itself; the independent charts differ from each other by one to three years at most boundaries, which is why this table uses multi-year bands instead of false single-year precision. |
| 1976–1980 | 1976–1980 | Cross-referenced across multiple independent published Rolex serial-dating charts and collector/dealer references, none treated as sole authority. Rolex has never published this data itself; the independent charts differ from each other by one to three years at most boundaries, which is why this table uses multi-year bands instead of false single-year precision. |
| 1981–1985 | 1981–1985 | Cross-referenced across multiple independent published Rolex serial-dating charts and collector/dealer references, none treated as sole authority. Rolex has never published this data itself; the independent charts differ from each other by one to three years at most boundaries, which is why this table uses multi-year bands instead of false single-year precision. |
| 1986–1987 (pre-letter) | 1986–1987 | Cross-referenced across multiple independent published Rolex serial-dating charts and collector/dealer references, none treated as sole authority. Rolex has never published this data itself; the independent charts differ from each other by one to three years at most boundaries, which is why this table uses multi-year bands instead of false single-year precision. Rolex moved to a letter-prefix serial in mid-1987, so the top of this numeric band is soft. |
| Prefix R, L, E, X | 1987–1990 | In 1987 Rolex began prefixing the serial with a single letter, starting with R, L, E, X — spelling ROLEX without the O. Cross-referenced across multiple independent published Rolex serial-dating charts and collector/dealer references, none treated as sole authority. Rolex has never published this data itself; the independent charts differ from each other by one to three years at most boundaries, which is why this table uses multi-year bands instead of false single-year precision. |
| Prefix N, C, S | 1991–1994 | N, C and S are consistently reported as arriving in the early-to-mid 1990s. Cross-referenced across multiple independent published Rolex serial-dating charts and collector/dealer references, none treated as sole authority. Rolex has never published this data itself; the independent charts differ from each other by one to three years at most boundaries, which is why this table uses multi-year bands instead of false single-year precision. |
| Prefix W, T, U | 1995–1997 | Cross-referenced across multiple independent published Rolex serial-dating charts and collector/dealer references, none treated as sole authority. Rolex has never published this data itself; the independent charts differ from each other by one to three years at most boundaries, which is why this table uses multi-year bands instead of false single-year precision. |
| Prefix A, P | 1998–2000 | Cross-referenced across multiple independent published Rolex serial-dating charts and collector/dealer references, none treated as sole authority. Rolex has never published this data itself; the independent charts differ from each other by one to three years at most boundaries, which is why this table uses multi-year bands instead of false single-year precision. |
| Prefix K, Y | 2000–2003 | Cross-referenced across multiple independent published Rolex serial-dating charts and collector/dealer references, none treated as sole authority. Rolex has never published this data itself; the independent charts differ from each other by one to three years at most boundaries, which is why this table uses multi-year bands instead of false single-year precision. |
| Prefix F, D | 2003–2006 | Cross-referenced across multiple independent published Rolex serial-dating charts and collector/dealer references, none treated as sole authority. Rolex has never published this data itself; the independent charts differ from each other by one to three years at most boundaries, which is why this table uses multi-year bands instead of false single-year precision. |
| Prefix Z, M | 2006–2008 | Cross-referenced across multiple independent published Rolex serial-dating charts and collector/dealer references, none treated as sole authority. Rolex has never published this data itself; the independent charts differ from each other by one to three years at most boundaries, which is why this table uses multi-year bands instead of false single-year precision. |
| Prefix V | 2008–2010 | Cross-referenced across multiple independent published Rolex serial-dating charts and collector/dealer references, none treated as sole authority. Rolex has never published this data itself; the independent charts differ from each other by one to three years at most boundaries, which is why this table uses multi-year bands instead of false single-year precision. V is the last letter prefix before the mid-2011 switch to fully randomized serials. |
| Everything after the documented eras above | Not datable | Starting in mid-2011 Rolex switched to fully randomized alphanumeric serials that carry no year information at all, confirmed across every major dealer/collector reference. A serial from this era cannot be dated by Watch Safe, or by anyone outside Rolex. |
Between the lugs at the 6 o'clock position, under the bracelet, on watches made before roughly 2005. From about 2005 Rolex began repeating the serial on the inner bezel ring (the rehaut), visible without removing the bracelet.
Between the lugs at the 6 o'clock position on watches made before roughly 2005, which means removing the bracelet to see it. Rolex started repeating the serial on the rehaut, the inner bezel ring, from about 2005 onward, so on newer watches it is visible without taking anything apart.
For anything made from 1964 through 2010, yes, approximately: Rolex's serial sequence and later letter-prefix system are documented well enough to place a watch within a multi-year band. From mid-2011 onward Rolex switched to fully randomized serials with no year encoding, so a serial from that era cannot be dated at all, by this tool or anyone outside Rolex.
No. A serial number identifies an individual watch and, for older watches, roughly when it was made. It does not authenticate anything: a serial in the right range shows only that Rolex issued a number like it, not that the watch in front of you is the genuine article it claims to be. That is a physical inspection question.
Watch Safe does not authenticate watches itself. An independent expert authenticator in Watch Safe's network physically inspects the watch and certifies it; Watch Safe records that inspection and publishes the permanent registry entry.
Browsing Rolex models and references? See the Rolex reference guide.