Checking watch papers and service history

Papers and service records are part of what a buyer pays for. A full set with a warranty card, and a history of service at the right places, can add meaningfully to what a watch sells for. That value makes documents a target: cards are counterfeited, dates and details altered, and genuine papers moved from one watch to another. Checking the documents is as much a part of intake as checking the watch.

Match the papers to the watch

The first and most important check is that the papers belong to this watch.

• The serial on the card or certificate should match the serial on the watch exactly.
• The reference on the papers should match the watch's reference and variant.
• The dates should make sense for the watch: a card dated before the reference existed, or long after production ended, needs an explanation.
• The retailer details, where shown, should be plausible for the watch and the region.

A mismatch isn't always fraud. Mistakes happen, and some watches were sold with papers filled in oddly. But it's a reason to stop and understand before you pay for the papers as part of the price.

Look at the document itself

Counterfeit papers have improved, and your best defense is familiarity with genuine ones for the brands you deal in.

• Printing quality, fonts, and layout compared with genuine examples you have seen or photographed.
• Signs of alteration, such as erased or overwritten serials and dates, or stamps that look added.
• Material and finish of cards, which on many modern brands have specific features.
• Consistency across the set. The box, booklets, tags, and card should belong together and to the same era.

If you're unsure, a specialist in the brand can often tell more from the papers than you can.

Check the service history

Service records show that a watch has been cared for, and a recent service from a reputable provider can support the price and reduce your prep. They also need checking.

• The watch's serial should appear on the service paperwork.
• The date and work done should be specific: what was serviced, what parts were replaced.
• The provider should be identifiable and contactable.
• Where it matters, confirm it. A watchmaker or service center can sometimes confirm they serviced a watch, and some manufacturers keep records of work done at their own service centers.

Remember that a service can also change a watch: replacement dials, hands, and bezels are common at manufacturer service. The paperwork may tell you what's no longer original, which affects value to collectors.

When the story doesn't add up

• Papers that don't match the watch: price the watch as if it had no papers, or walk away if the mismatch suggests something worse.
• Documents that look altered: treat them as unreliable, and consider what else about the watch might be.
• Service claims without paperwork: treat the watch as unserviced when you price it. The service article covers pricing that.

Pricing what you can rely on

Only pay for what you can verify. If the papers check out, include them in your estimate of the sale price. If they don't, price the watch without them. The box and papers article explains how accessories affect value, and the max buy calculator lets you run both versions of the deal.

Keep copies

Photograph the papers and service records at intake and file them with the watch's record, alongside the watch's serial. If the originals are later questioned, lost, or disputed, your copies show what came with the watch when you bought it. When you sell, describe the documents accurately, as the condition report article covers.

Buying vintage watches covers what decades of servicing do to originality, and new old stock and grey market watches covers the warranty question on unworn pieces.