LoupeLabInspection Protocol
Dealer-grade guided checklists for verifying watch condition and authenticity. Model-specific checkpoints with weighted pass/fail scoring and detailed reports.
Our inspection protocols guide you step-by-step through the same checks professional dealers use, whether you're at a shop, a meetup, or evaluating an online listing.
How It Works
Each inspection walks you through model-specific checkpoints with clear instructions, tools needed, and pass criteria. Here's what a typical protocol looks like:
Verify serial number placement between the lugs, check engraving depth and font consistency against known production formats. Counterfeits often use incorrect fonts, shallow laser etching, or serials that don't match the production date window.
Examine text alignment under magnification, check lume application uniformity on indices and hands, and verify logo proportions match reference images. Look for bleeding ink edges, misaligned coronet, or inconsistent letter spacing.
Test screw-down action for smooth threading without cross-threading resistance. Check winding feel through all positions: pull to position 1 (date), position 2 (time). Genuine crowns have consistent tactile feedback.
Listen for smooth, consistent winding sound when the watch is gently rocked. Check for bearing noise, grinding, or excessive wobble. A properly serviced genuine movement produces a quiet, even whir.
Example steps shown. Actual protocols contain 15-25+ model-specific checkpoints.
Sample Inspection Report
After completing an inspection, you get a pass/fail report broken down by category.
Rolex Submariner Date
Ref. 126610LN
18/20
Checkpoints Passed
Example report with simulated data. Actual results are based on your checkpoint responses.
How Our Data Works
Accuracy matters. Here's how we build and maintain our inspection protocols.
Expert-sourced checkpoints
Every checkpoint is derived from watchmaker expertise and brand service documentation. The same checks dealers use in-house.
Model-specific protocols
Each protocol is tailored to the exact reference number. A Submariner 126610LN has different checkpoints than a Datejust 126334. Generic brand-level checks miss reference-specific tells.
Weighted scoring system
Critical checkpoints like serial number verification and movement engravings carry more weight than cosmetic checks. A failed critical checkpoint is a stronger red flag than a minor cosmetic issue.
Continuously updated
Protocols are updated as new counterfeiting patterns emerge. When a new generation of replicas appears, new checkpoints are added to catch them.
Disclaimer: LoupeLab inspection protocols are an assistive tool to help you evaluate watches more thoroughly. They are not a substitute for professional authentication. For high-value purchases, we recommend having the watch examined by an authorized dealer or independent watchmaker.
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Search for a watch model to view its inspection protocol.
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