Check a Watch Before You Buy: TrustWatch Single Check

You found the watch. A pre-owned Submariner, a Speedmaster, a Santos, listed a few hundred euros under what the others are asking. The seller replies fast, the photos look sharp, and they would like the payment today.

That is exactly the moment when a second opinion is worth paying for, and when a monthly subscription is the wrong tool. You do not need 120 checks a month. You need one, now, on this listing.

So TrustWatch now sells single checks. One check costs €9.90, with no subscription and no account. You upload a photo of the dial, pay once, and get the full TrustWatch report on that watch.

Each check gives you the same full report as a TrustWatch Plus member:

• A verdict: real, fake, uncertain, or "not a watch" when the photo cannot be screened.
• Class scores: how strongly the model leans towards each outcome, so a 94% "real" reads differently from a 58% one.
• An attention heatmap over your photo, showing which areas of the dial drove the result.
• A plain-language AI summary of what the scores mean for this photo, and what is still worth checking in person.
• A PDF report you can keep, or send to the seller with your questions.

Prices include VAT. Payment runs through Stripe, inside the page, by card or wallet.

A result of "Not a watch" or "Uncertain" never uses a credit. If the photo is too blurry, too far away, or the screening cannot reach a clear verdict, the check goes back on your code and you can try again with a better photo.

1. Take or save one clear photo of the dial. JPEG, PNG or WebP, up to 10 MB. A photo from the listing works; one you asked the seller to take is better (more on that below).
2. Choose a pack on the Single Check page and pay. The payment window opens inside the page, so your photo stays where it is.
3. The analysis starts by itself as soon as the payment goes through. The full report usually takes about a minute.
4. Keep your credit code. It looks like TW-XXXX-XXXX-XXXX and appears on screen after the payment. If you bought a pack of 3 or 5, the remaining checks stay on that code: paste it into the page next time.

TrustWatch screens what is visible in the photo: dial printing, hands, indices, bezel and case details that differ between genuine pieces and fakes. That makes it fast and cheap, and good at one specific job: catching the listing you should walk away from before any money moves.

It is not a physical authentication. A photo cannot show the movement, the weight, or whether the serial number matches the papers. Watchmakers and marketplace guides make the same point: opening the case and testing the movement are checks no photo or app can perform (uBuyFirst).

Use the result as the first filter:

• Clear "fake": stop. Do not argue with the seller, do not pay a deposit.
• "Uncertain": ask for better photos and screen again (it does not use a credit), or move to an expert.
• Clear "real": good sign for the photo you checked. For an expensive piece, still finish with the steps below before paying.

The photo is one signal. These listing patterns show up again and again in buyer guides and forum warnings (Watch Patrol, The 1916 Company):

• Photos that exist elsewhere. Run them through Google Lens or TinEye. Scam listings often reuse images from genuine sales or brand catalogues.
• Only stock or distant shots. Ask for a close-up of the dial with today's date on a piece of paper next to the watch. A real owner can do it in two minutes.
• Hands and dial that aged differently. On older pieces, hands and dial lume should age together. A mismatch often means swapped parts.
• No reference or serial number, even in a private message.
• A price well below the market, a brand-new account, and pressure to pay today.
• Payment by wire, crypto or gift card only, or an "escrow" link sent by the seller.

For a deeper checklist, see our guides on how to authenticate a luxury watch and how to protect yourself from counterfeit watches.

The screening works on what it can see, so the photo matters more than anything else:

• Fill most of the frame with the dial. No wrist, no box, no background clutter.
• Shoot straight on, not at an angle, and keep the whole dial in focus.
• Avoid reflections on the crystal: turn off the flash and move away from direct lamps.
• Use daylight or soft indoor light, and send the original file instead of a screenshot when you can.
• If the seller sends the photo, ask for a new one rather than reusing the listing images.

Ranges from uBuyFirst and eBay; prices change, so treat them as orientation.

These options work best together. A €9.90 screening on day one can save you the inspection fee, and the trip, for a watch you should never have bought. For a watch that passes, the in-person check and the papers close the loop: see how to obtain a certificate of authenticity for a watch.

The single check is for buyers looking at one watch, or a few, a couple of times a year.

If you screen listings every week, as a collector, a flipper or a small dealer, TrustWatch Plus is cheaper: 120 full analyses a month for €15. That is less than two single checks. You can compare all plans on the TrustWatch page. The pre-owned market keeps growing, and so does the number of convincing fakes (our analysis of the pre-owned market).

Is a TrustWatch check a certificate of authenticity?
No. It is an AI screening of the photo you upload. It tells you whether that photo looks consistent with a genuine watch, and how confident the model is. A certificate requires a physical inspection by the brand or a qualified expert.

What happens if the result is "Uncertain" or "Not a watch"?
The check is not counted. Your credit goes back on your code, and you can upload a better photo.

Do I need an account?
No. You pay with Stripe on the page and receive a credit code. Keep the code to use the remaining checks of a 3 or 5 pack.

Can I use one code for different watches?
Yes. Each successful check uses one credit, whatever the watch.

Is VAT included?
Yes, the prices you see are final.