In short
- The reference identifies the model. The serial identifies one individual watch.
- Both appear on the papers and are engraved on the watch.
- Most current Rolex references have six digits, and on most of them the last digit tells you the metal.
- Letters after the number usually describe the bezel.
The reference number is the quickest way to identify a Rolex exactly. It tells you the model, and usually the metal and bezel, which is why dealers and collectors search by reference rather than by name. Once you know how Rolex reference numbers are built, a string like 126711CHNR stops looking like a code and starts telling you about the watch.
Reference number or serial number?
The reference number identifies the model and is the same on every watch of that version. The serial number is unique to one individual watch. Both appear on the warranty card or certificate, and both should match the numbers engraved on the watch.
A simple way to remember it: thousands of watches share a reference, but only one watch has your serial. Rolex reference numbers describe what the watch is, while the serial identifies which watch it is.
Where to find it
- On the papers. The warranty card or certificate shows the reference and serial numbers.
- On the case. The reference is engraved between the lugs at 12 o'clock, hidden by the bracelet.
- The serial. On modern watches it is engraved on the rehaut, the inner ring between the dial and the crystal, at 6 o'clock. On older watches it is between the lugs at 6 o'clock.
Removing a bracelet can scratch the case, so if you want the lugs checked it is best done by a watchmaker or dealer.
Keep a clear photograph or scan of your papers somewhere safe. If the originals are ever lost, a record of the Rolex reference numbers and serial still helps you identify the watch for insurance or a future sale.
How to read the digits
Older Rolex references have four or five digits. Most current models have six. The first digits identify the model family, for example 126610 for the current Submariner Date, 126710 for the GMT-Master II and 126300 for the Datejust 41. On most modern references the last digit tells you the metal:
| Last digit | Metal | Example |
|---|---|---|
| 0 | Stainless steel | 126300 Datejust 41 |
| 1 | Everose Rolesor (steel and Everose gold) | 126711CHNR GMT-Master II |
| 2 | Rolesium (steel and platinum) | 126622 Yacht-Master 40 |
| 3 | Yellow Rolesor (steel and yellow gold) | 126613LB Submariner Date |
| 4 | White Rolesor (steel and white gold) | 126334 Datejust 41 |
| 5 | 18ct Everose gold | 126715CHNR GMT-Master II |
| 6 | Platinum | 228236 Day-Date 40 |
| 8 | 18ct yellow gold | 228238 Day-Date 40 |
| 9 | 18ct white gold | 228239 Day-Date 40 |
The pattern holds for most modern references but not every one, so always check the full reference.
Most of the confusion around Rolex reference numbers comes from those exceptions and from older watches, which follow different patterns. If a reference does not seem to fit the table, it is not necessarily wrong; it may simply be an older or less common version that a specialist can confirm.
How Rolex reference numbers have changed over time
As Rolex updated its models, the references grew longer. Vintage watches carry four-digit references, such as the 5513 Submariner or the 1675 GMT-Master. Later generations moved to five digits, such as the 16610 Submariner Date, the 16710 GMT-Master II and the 16233 Datejust in steel and yellow gold.
Six-digit references followed, and they often keep the old number inside the new one. The Submariner Date went from 16610 to 116610 and then to 126610, and the GMT-Master II from 16710 to 116710 and then to 126710. That continuity makes Rolex reference numbers easy to trace across generations: the core of the number stays, and the extra digit at the front marks a newer version of the same model.
Among six-digit Rolex reference numbers, one beginning 12 is usually a more recent generation than one beginning 11. If you are comparing two watches that look almost identical, that first pair of digits is often the quickest way to tell which generation you are looking at.
A note on vintage references
Four-digit Rolex reference numbers belong to watches that are often several decades old, and a single vintage reference could be made for many years with small changes along the way. Dials, hands and bezels were sometimes replaced during services over that time, so with vintage watches the reference is only the start. Originality of each part matters a great deal, and papers are less common than on modern watches. A specialist inspection is essential before you buy or sell one.
What the letters mean
Letters after the number usually describe the bezel. They come from French colour names.
| Suffix | Meaning | Often called |
|---|---|---|
| LN | Lunette Noire, black bezel | |
| LV | Lunette Verte, green bezel | |
| LB | Lunette Bleue, blue bezel | |
| BLNR | Bleu Noir, blue and black bezel | Batman |
| BLRO | Bleu Rouge, blue and red bezel | Pepsi |
| CHNR | Chocolat Noir, brown and black bezel | Root Beer |
| VTNR | Vert Noir, green and black bezel | Sprite |
Not all Rolex reference numbers carry letters. Many, such as the 126300 Datejust 41 or the 228238 Day-Date 40, have none at all. Newer suffixes follow the same idea. GRNR, for example, marks the grey and black bezel on a recent GMT-Master II. Nicknames such as Batman or Pepsi are used widely by collectors, but they are not official Rolex names, so always rely on the full reference rather than the nickname when you buy or sell.
Rolex reference numbers in practice: four examples
Reading Rolex reference numbers gets easier with a few real examples. Here is how the digits and letters come together on four watches from our own listings. Read each reference from left to right: model family, then metal, then bezel.
- 126720VTNR. A GMT-Master II ending in 0, so stainless steel, with a green and black bezel. It differs from the 126710 by its crown and date on the left-hand side of the case.
- 126715CHNR. The same model family ending in 5, so 18ct Everose gold, with the brown and black bezel collectors call Root Beer.
- 228236. A Day-Date 40 ending in 6, so platinum. Like most Day-Date references, it has no letters after the number.
- 126331. A Datejust 41 ending in 1, so Everose Rolesor, which combines steel with 18ct Everose gold.
How to look up a Rolex reference number
- Check the papers first. The warranty card or certificate is the easiest place to read the reference without touching the watch.
- Compare it with current models. The official Rolex website shows the current collection, which helps you match current Rolex reference numbers to the right model.
- Look at the watch itself. Note the model name on the dial, the bezel, the metal and the bracelet. These details narrow down the reference even without papers.
- Ask a dealer or watchmaker. If you need the number between the lugs, have the bracelet removed by someone with the right tools.
Older Rolex reference numbers for discontinued models may no longer appear on Rolex's website. In that case the papers, the engraving between the lugs or an experienced dealer are your best sources.
Rolex reference numbers by model family
You do not need to memorise Rolex reference numbers, but recognising the main families saves time. These are examples of current and recent references, many of which appear in our listings and in the table above.
| Model | Example references |
|---|---|
| Submariner | 124060, 126610LN, 126610LV, 126613LB |
| GMT-Master II | 126710BLNR, 126711CHNR, 126715CHNR, 126720VTNR |
| Cosmograph Daytona | 126500LN, 126505, 126508 |
| Datejust 41 | 126300, 126331, 126334 |
| Datejust 36 | 126200, 126231, 126234 |
| Day-Date 40 | 228235, 228236, 228238, 228239 |
| Sky-Dweller | 326934, 326935, 336933, 336934 |
| Explorer II | 226570 |
| Oyster Perpetual 36 | 126000 |
This is not a complete list. Each model family includes other metals, sizes and older generations.
Using Rolex reference numbers to search and compare
When you are researching a watch, search by the full reference, including any letters, and add the dial colour. Searching by a model name alone mixes generations, metals and sizes together, which makes comparisons meaningless.
Compare like with like. Two listings with the same Rolex reference numbers can still differ in condition, completeness and service history, so the reference is where a comparison starts, not where it ends. Be cautious with listings that give only a nickname or a model name and leave the reference out, and ask the seller for it before going further.
Common mistakes with Rolex reference numbers
- Confusing reference and serial. The serial is unique to one watch; the reference is shared by every watch of that version.
- Ignoring the suffix. An LN and an LV version of the same Submariner are different watches with different bezels, and buyers treat them differently.
- Assuming the reference describes everything. One reference can come with many dial options and, on some models, more than one bracelet. The reference alone does not tell you the dial.
- Relying on the last digit alone. The metal pattern holds for most modern references but not all, so read the full reference.
- Trusting papers that do not match. If the reference on the card is not the watch in front of you, ask why before going any further.
Why the reference matters
When you buy, the reference tells you exactly which watch you are paying for. When you sell, it is the first thing a valuer needs. If you are selling, send us the reference with a few photographs and we can give you an initial figure. See what decides a Rolex's value.
Buyers compare Rolex reference numbers because two watches with the same name can be very different. A Datejust in steel and a Datejust in Everose Rolesor, or a GMT-Master II with a CHNR bezel and one with a BLNR bezel, are separate watches to a buyer. Quoting the full reference when you ask about a watch, or when you sell your Rolex, avoids confusion on both sides.
Every watch we sell is inspected and authenticated by experienced watch specialists before it is offered, and its serial number, bracelet number, movement identifiers and case markings are recorded. If you are not sure which reference you own, send us photographs on WhatsApp at +44 (0)7888 888835 and we will help you identify it.
Frequently asked questions
Where is the reference number on a Rolex?
On the warranty card or certificate, and engraved on the case between the lugs at 12 o'clock, under the bracelet. The papers are the easiest place to check, because removing the bracelet risks scratching the case.
Can Rolex reference numbers tell me how old my watch is?
Only roughly. A reference tells you which generation of a model you have, and every reference was made over a span of years. The date on the warranty card or certificate is the clearest record of when the watch was first sold.
Are Rolex reference numbers unique to one watch?
No. Every watch of the same version shares the same reference. The serial number is the one that is unique to an individual watch.
What does LN mean after a Rolex reference?
LN stands for Lunette Noire, French for black bezel. You will see it on references such as the 126610LN Submariner Date and the 126500LN Daytona.
Why do some Rolex references have only four or five digits?
Because they are older. Vintage references usually have four digits, the next generations five, and most current models six. The longer number often contains the older one, which helps you trace a model's history.
Do Rolex reference numbers change when a model is updated?
Usually, yes. A new generation of a model normally gets a new reference, and it often contains the old number with an extra digit, as with the Submariner Date moving from 16610 to 116610 and then 126610.
Do all Rolex reference numbers have letters?
No. Letters are mostly used to describe a bezel, typically on sports models. Many references, including most Datejust and Day-Date models, have no letters.
Does the reference number tell me the dial colour?
Not on its own. Many references are made with several dials, so describe the dial as well as giving the reference when you ask about a watch.
Rolex in stock now
If you would like help reading the Rolex reference numbers on your own watch or its papers, get in touch or book an appointment at our Hatton Garden showroom. Kings & Queens Watches is an independent dealer and is not affiliated with Rolex.
