A watch with no papers: what it actually changes

A warranty card establishes that a watch bearing certain numbers was sold on a given date by an authorised retailer. That is real and useful information. It says nothing about the watch's present condition, nor about whether the object in your hand is the one the card describes.

The same limit applies to the archive extracts issued by the manufacturers, and it is far more serious than most buyers assume.

Seven watch houses state explicitly that their archive extract does not certify authenticity. Audemars Piguet writes that the extract only certifies that the case and movement numbers appear in their records. Breitling goes further on the mechanism, noting that the document is issued solely on the basis of information supplied by the applicant, without any physical inspection of the watch.

In other words, a perfectly valid archive extract can accompany a counterfeit carrying the correct numbers. The fact that seven competitors independently added this warning suggests these extracts have been widely used as a resale argument, wrongly.

It is most people's first instinct: look for an official page where you can enter a serial number. We examined the fourteen main manufacturers. Not one offers that service publicly and free of charge. There are no exceptions.

TAG Heuer explains why in plain terms: a model name and a serial number are not enough to guarantee the authenticity of a watch.

The digital passports launched recently, at Tudor since 2020, at Panerai since October 2023, and at Vacheron Constantin and IWC, do not fill that gap. They are chip-based access to the warranty card you already hold. They are therefore unusable before a purchase, at precisely the moment the information would matter.

What several houses do offer is a paid archive extract, and for some a physical examination in the workshop, the only document that actually bears on the object itself.

This is the practical point that affects the most owners, and it is rarely set out clearly. All fourteen brands we examined condition their warranty on an authorised purchase, evidenced by the card.

Rolex sets three cumulative conditions: the watch must have been sold by an Official Rolex Jeweler, the card must be fully completed, and it must be presented with the watch. The brand also declines to reissue a card under any circumstances.

Omega puts it more bluntly still, stating that watches bought from unauthorised sources might be damaged or counterfeited and may not benefit from a warranty.

One important nuance, which TAG Heuer alone states explicitly: this commercial warranty is in addition to your statutory rights, not instead of them. If you bought from a trader, your legal rights continue to apply regardless of any card.

Faced with missing documents, the common reflex is to buy a certificate from an independent expert. It is one route, but a more fragile one than it looks, and worth understanding before paying.

In France, and to a large extent elsewhere in Europe, the title of art expert is not regulated. There is no compulsory qualification, no professional body, no monopoly. Anyone can issue a certificate. The French Supreme Court held in 2018 that a professional who relies on a certificate without checking the circumstances in which it was drawn up commits gross negligence.

What gives a document its value is therefore not its title but the ability to check it against an issuer who is identifiable, still trading, and has an interest in not lying. An invoice from a retailer still in business can be checked with that retailer. A certificate signed by a lone individual, often untraceable years later, cannot.

That is why we work on the traceability of the purchase rather than the expertise of the object. We formally ask the seller for the documents establishing their supply, and we report what they answer. A seller with orderly sourcing produces them without difficulty. A seller who does not answer gives you information no certificate provides.