Step 1 — Vet the seller before you read the listing
Open the seller's profile. The Chrono24 seller score has six visible signals: years on platform, transaction count, response rate, professional dealer (PD) badge, Buyer Protection enrolment, and authenticity guarantee participation. Filter on PD-badged sellers with 100+ transactions and 95%+ response rate as the floor; private sellers under that threshold are not necessarily bad but they require more verification work from your side.
Read the seller's recent reviews — not the aggregate score, the actual review text. Look for: late shipping (medium concern), wrong-watch-shipped (high concern), grading discrepancies (high concern), and how the seller responded to disputes (the response is more telling than the original problem).
Step 2 — Read the listing for what is missing
A complete listing has: at least 8 photos including dial, bezel, crown, case from both sides, bracelet/strap, and case-back; the reference number; the year of production; the box-and-papers status; and the service history (date and centre). If any of those are missing or vague, ask. Sellers who refuse to provide them are a meaningful negative signal.
Read the photos in order. The same watch shot in inconsistent light, with different colour casts on the dial across photos, is a small red flag — it can mean photos taken from different sources rather than the actual piece in the seller's hand.
Step 3 — Request the five WatchRadar angles
Even if the listing has eight photos, you want the five specific angles for the dossier: head-on dial, head-on bezel, crown profile, case profile, and bracelet/strap close-up. Most listings already have four of the five. Ask for what is missing. Run the WatchRadar dossier on the photos you receive — this gives you a verdict and a market-value band before you commit.
Step 4 — Cross-check the asking price
WatchRadar's dossier returns a low / typical / high band for the reference. Cross-check against Chrono24's own price history graph (visible per reference under the listing) and against the most recent sold-listings on Watchcharts or similar trackers. A listing 25% above the typical band needs justification — fresh service, full set with original retailer card, or a specific desirable variant. Without justification, counter-offer to typical band.
Step 5 — Buyer Protection or escrow
For listings under USD 10,000, Chrono24 Buyer Protection (Trusted Checkout) is the standard escrow path — payment held by Chrono24 until you confirm the watch matches the listing. Use it. The fee is 4–6% of transaction value depending on country; that fee buys you the legal right to dispute and refund if the watch is not as described. For listings above USD 10,000, third-party escrow services (Escrow.com, traditional bank escrow) are alternatives some buyers prefer.
Avoid wire transfers to private sellers without escrow protection. Even with a perfect-looking dossier, the transaction risk is too high.
Step 6 — Inspect on arrival
You have 14 days under Chrono24 Buyer Protection to inspect and accept. Use the time. Day one: weight check, magnification check (cyclops), bezel-rotation feel, crown threading. Day two: run a fresh WatchRadar dossier on the watch in your hand and compare to the dossier from the listing photos — they should match. If anything diverges meaningfully (different reference, different serial, different cosmetic state), open a dispute immediately.
Step 7 — For high-value pieces, watchmaker inspection
Above USD 15,000, before you accept, take the watch to an authorized service centre or independent watchmaker for a movement inspection. Cost is typically USD 100–300 for a visual movement inspection without service work. The watchmaker confirms the calibre is the calibre claimed, the serial-engraved numbers match, and there are no obvious frankenwatch issues. The cost is small relative to the protection.
After purchase: build the chain of custody
Once the watch is yours, issue an Authenticity Certificate to your own Watch Box. Photograph the box, papers, and any service receipts you got with the piece. Attach to the dossier. You now have a dated, documented record of the watch at the moment you took possession — useful for insurance, useful at resale, useful if a defect surfaces in the early-ownership window.