Watch Serial Number Lookup
Maurice Lacroix watches carry a reference number for the model and a serial number for the individual watch, and the brand's warranty certificate records both. This guide shows where to find them on Aikon, Pontos, Masterpiece and Les Classiques models, what they can and can't confirm, and how to check a Maurice Lacroix serial against stolen-watch records before you buy.
Watch checks & theft reports
A database check is not proof of authenticity or ownership.
The serial number is engraved on the case back, usually alongside the reference or around its edge. On watches with a sapphire display back, such as many automatic Aikon models, check the metal surround of the case back rather than the glass. The same serial number and the reference are written on the international warranty certificate, which the authorised retailer completes, signs and dates at purchase.
The serial identifies your individual watch. Maurice Lacroix records it on the warranty certificate with the reference and purchase date, and its service centres use it to look up a watch's record. There's no public serial-to-date decoder, so the purchase date on the certificate or invoice is the reliable date. The reference identifies the exact model, case, dial and strap.
No. Popular models such as the Aikon are copied, and fakes often carry serial numbers taken from real watches. Check that the reference matches the watch exactly (collection, size, dial, bracelet and movement), compare the serial with the warranty certificate, and have anything you're unsure about inspected by an authorised Maurice Lacroix retailer.
Check the case back, between the lugs, the rehaut, the movement, the warranty card and the original box or papers. Locations vary by brand — see the brand guides below.
Most brands also stamp a separate reference or model number. Together, the two numbers identify the exact watch far better than either alone.
Run the serial number through our stolen-watch database to check whether matching watch information has been reported stolen.
A match or a clean result is one data point, not a verdict — compare the watch's details carefully either way.
For a significant purchase, pair your search with authentication from the manufacturer, an authorized dealer or an independent watch specialist.
Maurice Lacroix launched in 1975 and is based in Saignelégier in the Swiss Jura, where it also produces some of its own movements. Its main collections are Aikon, Pontos, Masterpiece, Les Classiques and Fiaba. The international warranty runs two years from purchase, and the brand's user manual is explicit that it only applies when the certificate shows the serial number, the exact purchase date and an authorised retailer's signature.
Maurice Lacroix references start with a two-letter collection code and a four-digit model number, followed by blocks for the case, bracelet and dial. In AI6008-SS002-330-1, AI marks the Aikon collection. Other collections use their own codes, such as PT for Pontos, MP for Masterpiece and LC for Les Classiques.
The exact meaning of each block varies by collection and generation, so the most practical use of the reference is to search it and compare the official product photos with the watch you're being offered.
| Part | Example | What it tells you |
|---|---|---|
| Collection code | AI | The collection (AI = Aikon, PT = Pontos, MP = Masterpiece, LC = Les Classiques) |
| Model number | 6008 | The model within the collection |
| Case and bracelet code | SS002 | Case material and bracelet or strap |
| Dial code | 330 | Dial colour and finish |
| Variant | -1 | Further variant of the same configuration |
The international warranty certificate is the document that ties the serial number to a purchase: it carries the serial, the reference, the purchase date and the authorised retailer's name and signature. Without it, Maurice Lacroix's two-year warranty doesn't apply.
When you buy secondhand, ask to see the certificate and check that its serial matches the case back exactly. A certificate that is blank, unsigned or shows a different serial isn't proof of anything, and a seller who has the box but not the certificate should be able to explain why.
The serial number is what lets a stolen Maurice Lacroix be identified later, so the most useful thing you can do is get it on record quickly and in as many places as possible.
It's engraved on the case back, usually alongside the reference or around the edge. On display backs, check the metal around the sapphire window. It's also written on the international warranty certificate.
The reference (for example AI6008-SS002-330-1) identifies the collection, model, case, bracelet and dial. The serial number identifies your individual watch.
There's no public lookup. A Maurice Lacroix service centre can confirm a watch's record, and you can check the serial against stolen and lost watch records on StolenWatchX.
Not from a public decoder. The purchase date on the warranty certificate or invoice is the reliable date, and a service centre may be able to help with older watches.
Two years from the date of purchase. Maurice Lacroix's manual says it's only valid with a certificate showing the serial number, the exact purchase date and the authorised retailer's signature.
No. Copied serial numbers turn up on fakes. Check that every detail matches the reference and get an inspection if you're unsure.
Read the serial from the case back yourself or from a clear photo and search it on StolenWatchX before you buy or accept the watch.
Report it to the police, find the serial on your warranty certificate or invoice, tell your insurer, and register the watch as stolen on StolenWatchX.
Where to find a serial number, what it can tell you, and how to check it.
How to search a serial number against stolen-watch records before you buy.
What a serial or database check can — and can't — prove about authenticity.
A full due-diligence checklist for buying a pre-owned watch safely.
Start a police, insurer and marketplace report for a stolen watch.