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Dr. Helena Marchetti
Featured Expert
Senior Watch Authentication Specialist
4.98rating
15,420 verifications
22 years experience
Watches & Jewelry
About
With over 20 years of experience authenticating luxury timepieces, Dr. Marchetti has verified more than 15,000 watches for major auction houses and private collectors. Former head of authentication at Christie's Geneva.
Credentials & Certifications
- PhD in Horology
- AWCI Certified
- Former Christie's Specialist
Notable Work
- Authenticated Paul Newman Daytona sold at auction for $2.3M
- Verified Patek Philippe collection for royal family
Pricing
Standard Authentication
$350 - $5003-5 days
Express Authentication
$650 - $85024 hours
In-Person Consultation
$1,200+Same day
Service Areas
- Geneva, Switzerland
- Paris, France
- London, UK
Online services available worldwide