How to Check Tag Heuer Serial Number – Complete Guide

TAG Heuer Aquaracer Calibre 5

How To Check TAG Heuer Serial Number

Tag Heuer is one of the largest Swiss manufacturers in terms of watches produced yearly. It is today known as a luxury brand and is well-known all around the world. But with all of this also comes that Tag Heuer watches are commonly counterfeited.

One way to avoid buying a counterfeit watch is by looking at the serial number. However, have in mind that this is no guarantee that the watch is authentic. But more on this later.

In this article, we’ll teach you everything you need to know about Tag Heuer serial numbers. How do they work? Where can you find the serial number?

TAG Heuer serial numbers

The serial number of a Tag Heuer is unique to a specific watch. This helps identify the exact watch, for example when it was manufactured, which model the serial number was used for, and so on. The serial number normally comprises two or three letters followed by four numbers. However, some differences can apply to the number of letters and numbers. 

The serial number is not to be confused with the model number, also known as the reference number. The reference number is, as the name suggests, the number that reflects the model of the watch. This is not unique to a specific watch, but rather an exact model. Tag Heuer changed the reference number system in 1992.

The serial numbers vary a lot for watches before 1992 before this new update.

Where can I find my TAG Heuer watch’s serial number?

Every single Tag Heuer watch that leaves the factory is engraved with the reference number and the serial number on the case back. If the watch has a see-through case back, it will be engraved on the edge of the case back.

Sometimes it can be difficult to spot the serial number with the naked eye depending on the model, and you may need a loupe or magnification to read it. Both the serial number and reference number are placed directly above the other.

The bottom number is your TAG Heuer’s unique serial number and the top is the model reference number which relates to the model type.

Tag Heuer watches without serial numbers?

As mentioned, all Tag Heuer watches have serial numbers. This means that if you have a Tag Heuer watch that does not have a serial number, it is probably fake.

Now, as mentioned earlier, some vintage Tag Heuer watches did not have serial numbers, but the number is, generally speaking, very low.

In some cases, the serial number bay has been buffed or polished away, and you should always avoid buying a watch that has had the serial number intentionally removed as it may be signs that it has been stolen.

Now, don’t believe that if a Tag Heuer watch has a serial number, it is authentic, because this is not the case. If a counterfeiter has made a whole watch, it is not difficult to engrave a serial number as well. In most cases, the serial number used is completely made up. However, in some cases, c counterfeiters go to great lengths by finding the serial numbers of real Tag Heuer watches, for example online, and then using the serial number of an authentic Tag Heuer watch for their counterfeit watch.

You can, if you are suspicious, search your serial number on the internet. Many fake watches use the same serial number, even though they may use the serial number from an authentic watch (or not). Sometimes forums and discussion platforms highlight fake watches and common serial numbers used.

TAG Heuer Autavia CBE.2110.FC8226

Tag Heuer serial number lookup

Tag Heuer has a serial number database lookup online that allows you to see – with the help of your serial number – when the warranty was activated. This can be seen at

This website is currently under construction, but we will see if Tag Heuer decides to further build on and improve the Tag Heuer serial number database.

The good thing about the Tag Heuer serial number lookup is that when you search for your serial number, it allowed you to easily see if the serial number matched your watch as well as your watch’s production date. The digital TAG Heuer warranty is a huge step up for TAG Heuer as it helps prevent counterfeit watches. The issue is, of course, that counterfeiters can still steal serial numbers online and use them for the same watch, so when someone looks it up, it will show up on TAG Heuer’s website, although it is actually for a different (and authentic) watch).

TAG Heuer Monaco Calibre 12

If you have a fake watch, it is not uncommon that the serial number matches a completely different model than the one you have. Or… no results are found when you search for it, which means the counterfeiters have just made up a serial number to use.

If you are uncertain about the authenticity of your Tag Heuer visit a Tag Heuer official retailer and they may be able to help you verify it. A skilled watchmaker may also be able to help you.

Do you have any additional specific questions regarding TAG Heuer serial numbers? Consult one of our watch experts here!

76 thoughts on “How to Check Tag Heuer Serial Number – Complete Guide

  1. Hi, i already got Tag Heuer Carrera Calibre 16 – brown dial (CV2A12).
    And i already input the S/N from the back case (RAA8703) on the website , but the S/N didn’t show up (No results found).

    Is the watch authentic? Or fake?
    If its authentic, why the S/N didn’t show up?
    And how do i know the year of production of this watch?
    Is there any way to learn the meaning of the code (CV2A12) & the S/N itself?

    Thanks before.

    1. Hi,
      In general, the authorized detailer needs to activate the watch in the system at the point of sale in order for the watch to show up in the system. If it is authentic and doesn’t show up, this can therefore be the reason.

      With that said, the fact the watch does not show up in the system doesn’t automatically have to mean it is fake.

      It is not possible to find the meaning of the code for TAG’s modern watches. Older watches can be dated using the serial number but they now use random serial numbers.

      if you are unsure about the watch’s authenticity, I would advise you to have a watchmaker inspect it.
      Normally for newer watches, the easiest way to identify the year of production is to look at the online system and see when the warranty was activated. However, since this is not possible, your best bet is to visit an official TAG Heuer retailer and see if they may be able to assist.

      Hope this helps!

      Kind regards,
      Millenary Watches

  2. I’ve entered a TH formula 1 and i’ve got this information:

    -Serial Number: WUK5699
    -Warranty code: BLL4-SM7H-WQNV
    -Reference: CAZ1014.BA0842
    -Warranty Type: Sale Warranty
    -Warranty activated: 2019/02/18
    -Valid until: 2021/02/18

    “Warranty activated: 2019/02/18” that means the watch was in the warranty service technician? Please, help me.

    1. Hi,
      The warranty is only activated at the first point of sale, not after a service.

      Kind regards,
      Millenary Watches

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