Piaget Protocole 18K Yellow Gold Watch — product photograph

A running watch demonstrates that it operates at the time observed. “Serviced” describes work, but the term is incomplete without a date and scope. Before buying, establish who performed the work, what was done, what was replaced and which records are available.

Different jobs can sit behind the same word

A battery replacement, timing adjustment, water-resistance test and complete movement overhaul are different services. Any may be useful, but they should not be presented as equivalent. Ask the seller to describe the work in ordinary language rather than relying on a general status field.

Rolex’s published procedure describes dismantling, assessment, cleaning, lubrication, reassembly and testing as parts of its service process. That is an example of a defined procedure. It does not establish what a separate watchmaker did to a watch described simply as “serviced.”

What to request

  • The service date, or an explicit statement that it is unknown.
  • The provider and any available invoice or work order.
  • A description of movement work, testing and component replacement.
  • Any refinishing, dial work or bracelet work performed.
  • The written terms of any guarantee accompanying that work.

If a seller reports a service but has no invoice, the claim should remain qualified. It should not become a documented manufacturer overhaul by implication. Conversely, a useful service invoice need not prove that every external component is original to the watch.

What can a timing result tell you?

A timing measurement records performance under particular conditions. Ask when it was taken, the test conditions and whether multiple positions were assessed. A single screen photograph cannot establish the complete condition of a movement or prove when it was last overhauled.

Useful evidence combines functional observation, appropriate testing, physical examination and maintenance history. Where the history is incomplete, discuss the uncertainty and obtain a quotation for any work you expect to authorize.

Servicing and warranty are separate

A dealer warranty describes the support offered under that dealer’s terms. A manufacturer service guarantee comes from the manufacturer after qualifying work. Neither should be confused with proof that a watch is untouched or with unrestricted coverage for damage, wear or water exposure.

Labadie & Cora’s published policies distinguish working condition from a recent full service and exclude a water-resistance warranty for vintage watches. Read those terms alongside the individual listing.

Does every older watch need immediate service?

A qualified assessment should guide that decision. Avoid inventing a universal interval or repair cost for every brand, age and movement. What matters before purchase is a clear account of the known history, current assessment and any outstanding work.

Reference notes

Rolex: the servicing procedure. Manufacturer guidance describes that provider’s services; it does not imply affiliation with Labadie & Cora.

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Labadie & Cora is an independent dealer and is not affiliated with the brands discussed. Availability and the terms of any purchase are stated in the individual listing and published policies.

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