01 / Provenance
First, make the story hold together.
Provenance is not a single paper. It is the consistency between the watch, its identifiers, the records that accompany it, and the seller’s account. Treat every document as useful context—not as a substitute for examining the watch itself.
Build the ownership trail
Ask when and where the watch was acquired, how many owners are known, and whether invoices, warranty papers, service receipts, or correspondence support that account. Note gaps without treating them as automatic disqualifiers.
Match every identifier
Compare the reference and serial details on the case, movement, papers, and any service record. Ask the seller to explain any mismatch, changed format, or identifier that cannot be photographed clearly.
Separate original from accompanying
A box, certificate, or later archive extract may belong with a watch without proving that every component is original to it. Ask which parts are original, period-correct replacements, later replacements, or aftermarket.
Read the documents for consistency
Look for dates, reference language, retailer details, and service descriptions that make sense together. A clean-looking document is evidence to assess, not proof of authenticity by itself.
Ask what is not known
A candid seller should be able to distinguish documented history from an assumption. Write down unknowns, then decide whether an independent inspection or specialist opinion can close the gap.
02 / Condition
Then read the watch, not just the listing.
Condition is a set of observations. Look at the watch in good light, use a loupe if you know how to use one, and ask for permission before opening or operating anything. Compare what you see with the seller’s description.
Case shape and finish
Check whether the case retains its intended lines, bevels, and transitions. Look for over-polishing, softened edges, deep dents, corrosion, tool marks, or uneven finishing around the lugs and bezel.
Dial, hands, and lume
Look for refinishing, reluming, spotting, moisture damage, lifted or replaced markers, and hands that do not belong to the stated period. Small variations can matter; record them rather than guessing at their cause.
Crystal, bezel, and crown
Inspect chips, scratches, cracks, alignment, and the fit of the crystal. Check whether the bezel action and crown feel as expected for the watch, and ask whether any of those parts have been replaced.
Movement and operation
If the movement can be inspected safely, look for corrosion, loose parts, and signs of recent work. Check the functions gently and ask for timekeeping results rather than relying on a brief wrist test.
Service evidence and limitations
Ask when the watch was last serviced, what was done, and who performed the work. Treat water resistance as a documented test result with a date—not an assumption based on a case marking or a seller’s shorthand.
03 / Seller questions
Take these questions to the conversation.
Save the list, print it, or use it as a prompt for your notes. A direct answer is useful; a precise explanation of what is not known is useful too.
What do you know about the watch’s previous owners, and when and where did you acquire it?
Which parts of the ownership history are documented, and which parts are based on recollection?
Do you have the original purchase receipt, warranty papers, archive extract, or service invoices?
Do the reference and serial details match across the case, movement, papers, and service records?
Which components are original to the watch, which are period-correct replacements, and which are later or aftermarket?
Has the case ever been polished, refinished, repaired, or exposed to moisture?
Have the dial, hands, lume, bezel, crown, crystal, bracelet, or clasp ever been replaced?
When was the last service, who performed it, and what work and parts did it include?
Do you have recent timekeeping, function, pressure, or water-resistance test results to share?
Can you provide clear photographs of the movement, serial details, case edges, and any condition issue?
May I arrange an inspection by an independent watchmaker before the sale is final?
What are the return, warranty, inspection, payment, shipping, and insurance terms in writing?