Serial, case and movement numbers, if available, can assist in dating your timepiece and the authentication process when purchasing. Selected number charts and serial number projects (where a site tries to aggregate serial numbers from visitors who submit watch information) are shown below. Please if there are others we should include or there are resources with more accurate information. Breitling [The Unofficial Breitling Source] [Brittons Watches] Benrus Have not been able to locate information. Please if you know of one. Bulova [watchophilia] Girard-Perregaux Have not been able to locate information.

Please if you know of a third-party source of production information. Hamilton [Pocket Watch Site] Heuer [OnTheDash] IWC (International Watch Company) [Brittons Watches] [Elite Timepieces] There are also IWC web apps that can help date a particular watch, see and Jaeger-LeCoultre No public production date table known. Worth a try is sending a request (with the engraved number at the back of the timepiece, a picture of the front and back as well as the reference of the movement) to client.relations.europe@jaeger-lecoultre.com (For Europe) and client.relations.us@jaeger-lecoultre.com (For the US).

Since 1987, Rolex has used a system of 1 letter, followed by 6 digits. When buying and selling Rolex watches, that letter is one of the most important details. You must use the serial number from the MOVEMENT of the watch. The working part with the wheels and gears. Not the serial number from the watch case. Cases and watches were often made by different companies and each usually has its own serial number.

You can receive production information. Longines [WatchesToBuy] Mido Have not been able to locate information. Mido Watches will reply (usually) to requests for information, though it is rather hit-or-miss in terms of detail provided.

Please if you know of a third-party source of production information. Omega [Chronomaddox] [Chronomaddox] Patek Philippe [Brittons Watches] Rolex [Oysterworld via Vintage Rolex Forum] (button at top, via Vintage Rolex Forum). Case numbers by production date are shown at the bottom of the ‘Rolex Serial Number Project’ button. [Vintage Rolex Forum] [QualityTyme] And some bonus reading on bracelets: [Hodinkee] [Rolex Vintage Forum] Tissot Tudor (button at top, via Vintage Rolex Forum). This only includes the project information, held in Google docs format. [Vintage Rolex Forum] [QualityTyme] Universal Geneve [Wrist Chronology] [Dre on omegaforums] Vacheron Constantin [WatchesToBuy] Zenith No public production date table known. Please if there is one we should include.

You can receive production information. Post navigation.