MODA Watches
MODA guides

Watch guides, from dating to selling.

Free, practical guides for owners and buyers: date a watch by its serial number, learn what yours is worth, sell it safely, and understand what an appraisal should cost. Each one is maintained by MODA Watches.

Last updated June 2026 · maintained by MODA Watches

01Serial number guides

Date and verify by serial number

Rolex serial numbersDate a Rolex by serial: the letter-prefix chart, numeric-era ranges, and a free year lookup tool. Open Audemars Piguet serial numbersRead an AP: case and movement numbers, the series-letter dating chart, and how to verify it. Open Patek Philippe serial numbersDate a Patek by movement number, plus the official Extract from the Archives. Open Cartier serial numbersFind and read a Cartier serial, and what the pre- and post-2009 formats tell you about the year. Open How to spot a fake RolexWhy a real serial doesn't prove authenticity, the duplicate-serial test, and clasp-code and engraving red flags. Open
02Selling & appraisals

Sell smart and insure right

How to sell a Rolex or luxury watchWhat it's worth, your selling options, who to trust, how to ship it, and how to get paid fast. Open How much does a watch appraisal cost?Typical fees, why to avoid percentage-based pricing, and the flat $50 insurance appraisal. Open

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