How to Find a Watch Serial Number

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Where to look, in order

  1. 1

    Check the case back

    The most common location across brands — either engraved directly into the metal or printed/etched depending on the manufacturer.

  2. 2

    Look between the lugs

    Many Swiss brands, including Rolex and Tudor, engrave the serial between the lugs at 6 o'clock, hidden under the bracelet or strap.

  3. 3

    Check the rehaut

    On newer models from several manufacturers, the serial (or a duplicate of it) is laser-etched on the rehaut — the inner rim around the dial, visible with the crystal in place.

  4. 4

    Open the case to view the movement

    The movement itself is sometimes stamped with a serial or caliber number. Only a watchmaker should open the case, to avoid damaging water resistance or the movement.

  5. 5

    Check your paperwork

    The original receipt, warranty or guarantee card, and any service records typically list the serial number even if it has worn off the watch itself.

Why location varies by brand

There's no single universal standard — each manufacturer chooses where to stamp or engrave the serial number, and it can change across a brand's own model history. If the general locations above don't turn up a number, check our brand-specific guides for the manufacturers we cover, or consult the watch's original documentation.

What to do once you've found it

  • Write it down somewhere safe, separate from the watch itself.
  • Note the reference number alongside it, if there is one.
  • Run it through StolenWatchX's stolen-watch search before buying, selling, or reporting a watch as stolen.

Check this watch before you trust it

Run the serial number through StolenWatchX's stolen-watch database, then report anything suspicious so other buyers are protected too.

Frequently asked questions

Where is the serial number on most watches?

Most commonly on the case back, between the lugs (hidden under the bracelet or strap), on the rehaut of newer models, on the movement, or in the original paperwork. Exact placement depends on the brand.

What if I can't find any serial number at all?

Check the warranty card, receipt and any service documentation, which usually record the number even if it isn't visible on the watch. If you genuinely can't locate one, a watchmaker can often help by inspecting the movement.

Is the serial number the same as the model number?

No. The serial number is generally unique to your individual watch; the model or reference number identifies the specific model, dial and material shared with other watches of the same type. Most brands stamp both, separately.

Can I find my watch's serial number online using the model?

Not reliably — the serial number is unique to your physical watch and isn't something a model lookup can supply. You need to locate it on the watch itself or in your documentation.