A private watch sale can be straightforward when both sides agree on the details. The buyer still needs to identify the actual watch and keep a record of the transaction. Do the checks before money changes hands, while you can still ask questions.
Before you meet
Ask for the brand, model, serial, condition, included papers, price, and return terms in writing. Save the listing and messages. If the seller will share only a reference number, explain that you need the individual serial to search for theft reports.
At the inspection
Match the serial on the watch to the number you searched and the number on any papers. Take enough time to read the engraving; ask a watchmaker to help if it is obscured. Inspect the watch independently if authenticity or condition matters to you.
Before payment
Review the database result, the seller's documents, and your written terms together. A no-match result is limited to the records searched at that moment. It does not replace proof that the seller can transfer the watch or a safe payment method.
Put the serial, price, date, seller and buyer names, and condition on a receipt. Use a payment method that gives both sides a record. If the seller changes the watch, serial, location, or terms at the last minute, stop and reassess rather than rushing to finish.
Run the Serial Check Before the Meeting Ends
Compare the search result with the watch in your hand and keep a copy of the bill of sale.