The Rolex serial number tells you roughly when your watch was made: plain numbers up to about 1987, a letter prefix from 1987 to 2010, and a random mix of letters and numbers from about 2010. To find how old your Rolex is, read the serial number at 6 o'clock, then match it to the chart below.
Key Facts: Dating a Rolex by Serial Number
| Question | Short answer |
|---|---|
| Serial before about 1987 | Plain numbers, up to about 9.8 million, rising year by year |
| Serial from 1987 to 2010 | One letter prefix, such as R, K or V, then six digits |
| Serial from about 2010 | A random alphanumeric code. It does not show the year |
| Where to look | Between the lugs at 6 o'clock on older watches, on the rehaut on newer ones |
| How accurate | To within about a year, sometimes two. Rolex publishes no official database |
| Serial or reference | The serial is unique to one watch, and the reference identifies the model |
Rolex Serial Number Chart: How Old Is My Rolex?
The Rolex serial number chart below answers how old your Rolex is by matching the number or letter on the watch to a production year. Rolex does not publish its records, so Rolex serial numbers by year come from collector and dealer charts, and no chart is official. We compared three of them and used the dates on which they broadly agree. Where charts disagree, we show a range. Searches such as "date rolex by serial number", "rolex serial number dates" and "rolex serial number lookup" all lead to the same kind of table, and the Rolex serial number year it gives is the year the case was made, which is the Rolex year of manufacture for most purposes.
Letter prefixes, 1987 to about 2010
From the second half of 1987 to about 2010, your Rolex watch serial number begins with a letter, followed by six digits, and the letter moves on roughly once a year.
| Prefix | Typical year | Notes |
|---|---|---|
| R | 1987 to 1988 | Starts in the second half of 1987 |
| L | 1989 to 1990 | Some charts end it in 1989 |
| E | 1990 to 1991 | |
| X | about 1991 | Overlaps with N |
| N | 1991 to 1992 | Overlaps with X |
| C | about 1992 | |
| S | 1993 to 1994 | |
| W | 1995 to 1996 | |
| T | 1996 to 1997 | |
| U | 1997 to 1998 | |
| A | 1998 to 1999 | Charts differ on 1998 or 1999 |
| P | about 2000 | |
| K | 2000 to 2001 | |
| Y | about 2002 | |
| F | 2003 to 2005 | Runs across about three years |
| D | 2005 to 2006 | |
| Z | 2006 to 2007 | |
| M | 2007 to 2008 | |
| V | 2008 to 2009 | |
| G | 2009 to 2010 | The last letter prefix |
Treat each year as an estimate. Rolex used some prefixes across two calendar years, and a few overlap, so the Rolex serial number alone can leave a gap of a year or two.
Sequential numbers, before 1987
Before 1987, Rolex numbered watches in order, so a higher Rolex serial number means a later watch. The table gives the approximate serial reached at the start of each year listed, using the points on which the three charts agree.
| Around year | Approximate serial number | Notes |
|---|---|---|
| 1935 | about 35,000 | |
| 1940 | about 100,000 | |
| 1945 | about 302,000 | |
| 1950 | about 700,000 | |
| 1955 | restarted low | Numbering restarted around 1954 to 1955 |
| 1960 | about 510,000 | |
| 1965 | about 1.1 to 1.2 million | |
| 1970 | about 2.2 to 2.5 million | Sources differ |
| 1975 | about 3.9 to 4.3 million | Sources differ |
| 1980 | about 6.4 million | All three charts agree |
| 1985 | about 8.6 million | |
| 1987 | about 9.8 million | Then the letter R begins |
The mid-1950s restart matters, because it means a Rolex serial number from the 1950s can look like one from the early 1940s or the 1960s. For these watches the reference style and the caseback markings help to settle the year.
Random serial numbers, from about 2010
From about 2010, a Rolex serial number is a random mix of letters and digits, often eight characters long, and a random Rolex serial number does not show the year. Charts give 2010 or 2011 as the switch, so treat 2010 as a transition year. For a watch from the last fifteen years, rely on the papers, the reference number and the date the model was released.
Where Is the Rolex Serial Number? Location by Era
The Rolex serial number location depends on when the watch was made, which is also a quick clue to its age. This is the answer to "where is the serial number on a rolex" for each era.
| Watch made | Serial number location | Reference number location |
|---|---|---|
| Before about 2005 | Between the lugs at 6 o'clock, under the bracelet | Between the lugs at 12 o'clock |
| About 2005 to 2007 | On the rehaut at 6 o'clock, and often between the lugs as well | Between the lugs at 12 o'clock |
| From about 2008 | On the rehaut at 6 o'clock only | Between the lugs at 12 o'clock on many watches, and in the papers |
Where is the serial number on a Rolex that has no rehaut engraving? On an older Oyster case it is between the lugs, so the bracelet has to come off to read it. A watchmaker can do this safely. Do not force the bracelet or the spring bars. On a newer watch, hold a loupe over the rehaut, the ring between the dial and the crystal, and tilt the watch until the engraving catches the light.
People who search "how to find rolex serial number" on an older watch usually need a spring-bar tool and a steady hand, or a watchmaker. Finding the Rolex serial number on a newer watch needs only a loupe. Bracelets and clasps carry their own codes too, and these help when the case serial is worn or unclear. A rehaut that carries a sharp engraving and the right serial format is also one of the checks in our guide to how to tell if a Rolex is real.
Want to know what your watch is worth?
Get a valuation at our showroom at 88 Brompton Road, Knightsbridge, opposite Harrods, or send us photos and details.
Rolex Serial Number vs Reference Number
The reference number identifies the model, and the Rolex serial number identifies one individual watch, so no two watches share a Rolex serial number. A reference such as 126610LN is the Submariner Date with a black ceramic bezel, and every watch of that type carries it. The serial number is different on each watch.
You need both to describe a watch accurately. A buyer, an insurer or a valuer will ask for the reference to identify the model and the Rolex serial number to date it. Our guide to Rolex reference numbers explains how to read the reference. For checking a serial against a seller's claims, see how to check a Rolex serial number.
What Does the Rolex Serial Number Tell You About Value?
The Rolex serial number gives you the age of a watch, but age alone does not set its price, so the Rolex serial number is a starting point for a valuation, not the answer. Model, condition, originality, papers and market demand matter more. Dated dealer asking prices show this clearly.
| Reference | Older listing | Newer listing | What it shows |
|---|---|---|---|
| Datejust 41, 126334 (UK list price £9,750 on rolex.com, seen 15 November 2026) | £9,250 (2021) and £9,450 (2019) | £10,950 to £13,950 (2024 to 2026 watches) | Newer examples cost more than older ones of the same model |
| Submariner Date, 126610LN | £10,295 (2022) | £12,450 (2026) | A four-year-older watch asks less, but the gap is small |
| Day-Date 40, 228238, yellow gold | £30,995 (2016) | £36,500 (2022) | An older listing asks less, but dial and condition differ |
These are dealer asking prices from different retailers, not completed sales, so they show the direction and not a price you would receive. A seller should expect an offer below asking prices.
Three further points about age and value:
- Vintage is different. Many Rolex watches made before the 1980s remain in demand, even when they need servicing, and originality of the dial, hands and case can matter more than the year.
- Papers add value. One US dealer review published in June 2026 said a full-set modern Rolex often trades 10% to 20% above the same watch without papers, higher on sports models. It is a single source, so treat it as a guide.
- A matching serial helps a sale. When the Rolex serial number on the case, the papers and the rehaut agree, a buyer has less to question.
For the actual figure on a particular watch, you need a valuation, because the same serial year can cover very different watches.
Common Mistakes When Reading a Rolex Serial Number
The most common mistake is to treat the Rolex serial number as exact. It dates the case to within about a year or two, and the watch may have been sold later. The second is to mix up the serial and the reference: a short number at 12 o'clock is the reference, not the serial. The third is to assume a serial that matches a chart proves a genuine watch. Fakers copy real serials, so use the chart for age and our guide on how to tell if a Rolex is real for authenticity. A fourth is to rely on an online Rolex serial number lookup tool without knowing its source, since all of them draw on the same collector charts.
At Knightsbridge Watches: Value Your Rolex in London
Knightsbridge Watches is an independent watch buyer and workshop at 88 Brompton Road, Knightsbridge, London SW3 1ER, opposite Harrods, with over 30 years' experience. We are not an authorised Rolex dealer.
Once you know the age from the Rolex serial number, the next question is usually what the watch is worth. Bring it in with any box and papers, or send us the reference, the serial number and photographs, and we will give you a Rolex valuation. If you decide to sell, our sell my Rolex page explains the process. Payment is by bank transfer or cash once the watch is inspected, and sellers outside London can send the watch fully insured.
Open Monday to Friday 10:00 to 17:30 and Saturday 10:00 to 17:00. Call 08000 337 333, or message 07733 333 212. For other watches, see how to sell my watch in London.
Frequently asked questions
Where is the Rolex serial number?
On a Rolex made before about 2005 the serial number is engraved on the case between the lugs at 6 o'clock, under the bracelet. From about 2005 it also appears on the rehaut, the inner ring under the crystal at 6 o'clock, and from about 2008 it is on the rehaut only. The reference number is between the lugs at 12 o'clock on older watches.
How old is my Rolex?
Find the serial number, then match it to the chart above. A letter prefix such as K or V places the watch between 1987 and 2010. A plain number up to about 9.8 million places it before 1987. A random mix of letters and numbers means it was made from about 2010. Allow a year either side, because charts are estimates.
What is the difference between a Rolex serial number and a reference number?
The reference number identifies the model, for example 126610LN for a Submariner Date, and many watches share it. The Rolex serial number is unique to one watch and tells you roughly when it was made. You need both to identify a watch accurately, and both should match the papers.
Do newer Rolex watches have a random serial number?
Yes. From about 2010, Rolex stopped using sequential numbers and letter prefixes and moved to random alphanumeric serials, often eight characters long. A random Rolex serial number does not show the year. For a watch from the last fifteen years, use the papers, the reference number and the model's release date.
Can a Rolex serial number tell me if my Rolex is real?
Not on its own. A serial number tells you roughly when a watch was made, but fakers copy real serial numbers, and Rolex publishes no official lookup. A matching year is only one clue. For authenticity, follow the twelve checks in our guide on how to tell if a Rolex is real, and have a watchmaker inspect the watch.
How do I find the Rolex serial number without removing the bracelet?
On a watch made from about 2005 to 2008 onwards, look at the rehaut under the crystal at 6 o'clock with a loupe, as the serial is engraved there. On an older watch the serial sits between the lugs, behind the bracelet. Do not force the bracelet off. A watchmaker can remove it safely and read both numbers.
How much is a 20-year-old Rolex worth?
A 20-year-old Rolex has no standard price, because the model, condition, originality and papers matter more than the age. Dated dealer asking prices show that a recent Datejust can cost more than an older one. A valuation of the actual watch is the only reliable answer, and we can give you one in London.
Is there an official Rolex serial number lookup?
No. Rolex publishes no official serial-number database, so every Rolex serial number lookup, chart or tool online is compiled from collector records and is an estimate. Treat the year as accurate to within about a year or two. Rolex can confirm details for a watch it services.
Does the Rolex serial number show when the watch was sold?
No. The Rolex serial number shows roughly when the case was made, not when the watch was assembled, sold or first worn. A watch may sit with a retailer for months before sale. The dated guarantee card, if you have it, is the best record of the purchase date.
Related guides
Want to know what your watch is worth?
Get a valuation at our showroom at 88 Brompton Road, Knightsbridge, opposite Harrods, or send us photos and details.
Open Monday to Friday 10:00 to 17:30 and Saturday 10:00 to 17:00. Mobile and WhatsApp 07733 333 212.
Sources: Serial-to-year chart compiled from three collector and dealer charts that agree on the pattern but differ by a year in places: Bob's Watches serial number chart, Becker Time Rolex serial number lookup and Amsterdam Vintage Watches, 'Dating your Rolex by serial number' (all seen 15 November 2026). Rolex publishes no official serial-number database, so every chart is an estimate. Serial locations from the same three sources. Dealer asking prices (not completed sales) from the Rolex research sheet of 15 November 2026: BQ Watches Datejust 126334 listings (2019, 2021, 2024 to 2026), BQ Watches Submariner 126610LN listings (2024 to 2026), The Diamond Box Submariner 126610LN (2022 listing, updated May 2026) and Day-Date 228238 (2016 listing); BQ Watches Day-Date 228238 (2022). Rolex UK list price: rolex.com/en-gb, Datejust 41 126334 £9,750 (seen 15 November 2026). Box and papers: European Watch Company review (8 June 2026), a single US dealer.