Premium Valuations

Watch Authentication

This service is designed for clients who have purchased or acquired a pre-owned timepiece and require confirmation of its authenticity.

Whether acquired at auction, through a second-hand dealer, online marketplace, or inherited, we provide a thorough professional assessment to establish authenticity and condition with confidence.

Premium valuations

Watch Authentication

This service is designed for clients who have purchased or acquired a pre-owned timepiece and require confirmation of its authenticity.

Whether acquired at auction, through a second-hand dealer, online marketplace, or inherited, we provide a thorough professional assessment to establish authenticity and condition with confidence.

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YEARS EXPIREANCE

We offer professional authentication services for a wide range of prestigious luxury watch brands, including:

Hublot, Jaeger-LeCoultre, Raymond Weil, Piaget, Tudor, Rolex, Patek Philippe, Breitling, Bremont, Cartier, Chopard, Gucci, IWC Schaffhausen, Longines, Omega, and TAG Heuer.

What Your Watch Authentication Report Includes

Your comprehensive Watch Authentication Report will include:

Verification of Authenticity – Confirmation as to whether the watch is genuine or counterfeit.

Detailed Technical Description – Including brand, model, serial number, calibre reference number, dial description and functions, metal identification, case dimensions, gemstone details (where applicable), quality assessment, and commentary on any aftermarket modifications or customisations.

Condition Report – A professional assessment of the overall condition of the watch.

Pressure Testing – A pressure test will be conducted with a clear “pass” or “fail” result. Where required, resealing and testing to the manufacturer’s original water resistance specification can be arranged (Price on Application).

Database Verification – The watch will be checked against the Watch Register via the Art Loss Register, the world’s largest database of stolen timepieces.

Professional Photography – High-quality images of the exterior and movement.

Secure Registration – The completed report is registered to a secure central e-register database for record and reference.

Fees & Turnaround

We estimate a turnaround time of approximately three weeks, with authentication fees starting from £250.00.

All watch assessments and authentication reports are conducted in collaboration with accredited watchmakers and workshops recognised by the major watch houses.

The associate watchmakers working alongside Heather Callaway Ltd bring many years of experience in servicing and maintaining fine timepieces. Both are qualified WOSTEP trainers — a distinction that reflects the highest level of professional expertise, enabling them to train and mentor watchmakers to the most exacting industry standards.

Contact Us

  • 07789 275874

  • London, UK

  • Mon - Fri: 9am - 5pm

100 Hatton Garden, London EC1N 8NX, UK

Heather Callaway

Contact Details

  • 07789 275874

  • London, UK

Copyright 2026. Heather Callaway. All Rights Reserved.