L.M. Campbell Watch Service & Restoration

Independent examination

Independent watch authentication.

Two ways to examine the evidence. A documented report with clear findings, scope and limitations.

Photographic authenticity assessment

$100

A careful review of photographs, identifying marks and available documentation. Useful as an initial assessment or before committing to a purchase.

  • Visible case, dial, hands, crown and bracelet details
  • Reference and marking consistency
  • Written findings, image references and next steps

No physical examination or internal verification. Concealed parts and sophisticated alterations can remain undetected. A report may be inconclusive.

Request photo authentication

Physical authenticity examination

$300

An examination of the watch itself, by appointment or approved mail-in arrangement, with a documented report.

  • External condition, identifiers and component consistency
  • Accessible movement examination when opening is authorized and safe
  • Recorded scope, findings, limitations and conclusion

Full disassembly, pressure testing, material assays, appraisal and repair require a separate agreement. Shipping and the optional kit cost extra.

Request physical authentication

Before you buy

A second look before a decision.

Send the listing, claimed reference, clear photos and purchase or return deadline. For a physical examination, we coordinate intake with the owner’s permission. Confirm our timing before relying on a seller’s return window.

Photo review cannot establish that a seller will deliver the pictured watch. We do not offer escrow or guarantee seller refunds.

What your report includes

A reference and date; watch or image identification; evidence and components examined; observed inconsistencies or replacement parts; tests performed, if any; limitations; and a reasoned conclusion with recommended next steps.

Possible conclusions include evidence consistent with the claimed identity, observed inconsistencies, or insufficient evidence. A compatible serial number is never enough on its own.

Prepare the evidence

  1. Identify the brand, reference/model and known modifications.
  2. Supply clear front, back and side/crown photos. Provide serials privately when relevant.
  3. Tell us whether you own the watch or are considering a purchase, and confirm permission to share evidence.
  4. Review the terms, then wait for scope, fee and timing confirmation.

Do not open a watch yourself to obtain a movement photo. A qualified watchmaker can provide one when appropriate.

An independent opinion, with defined limits.

We are not a manufacturer-authorized authentication center. The report does not establish legal ownership, stolen status, market value, water resistance or future condition. Historical dating and routine repair are separate from authentication.

Authentication Terms · Historical production lookup

Report format

Findings you can follow.

Each report identifies the evidence examined, observations, limitations and conclusion. A conclusion can be consistent with the claimed identity, inconsistent, or inconclusive. This format is illustrative; it is not a completed customer report.

Preview the report structure
  1. Watch identification, reference and report date
  2. Photographs or components examined and agreed scope
  3. Observed markings, component consistency and discrepancies
  4. Tests performed and areas not examined
  5. Reasoned conclusion, limitations and recommended next steps

We confirm whether we can assess your particular watch before accepting the paid service. Repair, valuation and manufacturer certification are separate.