Every timepiece on Grailzee is independently inspected by one of our trusted third-party authentication partners, including Bennisson, Grand Central Watch, Watch Central, InvestmentWatches, and Official Time Watch, to confirm its authenticity, assess its condition, and uphold the highest standards of transparency and integrity, empowering buyers and sellers to transact with total confidence.
A Process You Can Trust
Expert Third-Party Evaluation
Each item on Grailzee is independently authenticated by our specialist authentication partners. Their process confirms authenticity, verifies key components, and classifies conditions with expert precision.
A Report That Adds Lasting Value
Each authenticated item includes a detailed certification report, an expert-backed document that enhances and supports future resale.
Clarity for Buyers, Credibility for Sellers
Buyers gain confidence through objective verification, while sellers benefit from increased trust and secure, dispute-free transactions.
Our authentication partners authenticate the core components of a watch, those essential to verifying originality. These must match factory specifications. If replaced, they must be manufacturer-authentic and clearly disclosed
What Else Is Inspected
Functional & Wear Components
Components subject to regular servicing or natural wear are carefully reviewed and documented.
Their condition helps contextualize the overall state of the watch and must be accurately described by the seller.
Aftermarket & Modified Watches
Watches with aftermarket or modified parts can be listed on Grailzee when clearly categorized and transparently described. Our authentication partners verify the originality of all applicable manufacturer components.
Each certified watch is assigned a condition category based on wear, originality, and proper disclosure — following defined, professional criteria.
Visual Accuracy Matters
The condition of each timepiece is determined and disclosed solely by the seller supported by images, which serve as the primary disclosure of a watch’s actual state. Buyers are encouraged to review all photos carefully and request additional views if needed.
From Listing to Verification
1
List & Sell Your Item
Upload clear photos and disclose service history or modifications.
2
Authentication
Experts inspect components and verify the stated condition.
3
Certificate & Release
Buyer receives a certificate of authenticity while the item remains in secure escrow.
Discover the Full Authentication Protocol
Go Beyond the Basics
Want to see exactly what our experts check, compare, and document? The full authentication standard is available for download and outlines every step of the process.
Whether you're a collector looking for your next grail or a seller ready to list with full transparency, Grailzee offers a secure, trusted environment for high-value timepieces.
