serial numbers

Universal Genève

Universal Geneve Serial Numbers with Production Dates

UNIVERSAL GENEVE SPLIT SECONDS CHRONOGRAPH MADE FOR THE ITALIAN AIR FORCE (Photo from Christies)

Only partial serial number data exists for Universal Geneve watches. Very few records exist of early production history. This is an unofficial history. Information provided for educational purposes only.

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Rolex

Rolex Reference Numbers (6-Digit)

A guide to quickly identify the current six-digit Rolex references. The 1st Digit of the Reference Number As mentioned above, a one was placed before the existing numbers with the…

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Panerai

Panerai Serial Letters with Production Dates

Panerai case backs are very helpful providing lots of useful information that can be used to identify and age a watch. The majority of Panerai Watches will have the following…

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Vacheron Constantin

Vacheron Constantin Serial Numbers with Production Dates

Only partial serial number data exists for Vacheron Constantin watches. Very few records exist of early production history. Note that Vacheron watches are frequently copied, so you should never purchase…

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Gobbi retailed Patek Philippe Reference 2523

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Patek Phillippe

Patek Philippe Serial Numbers with Production Dates

The serial number on a Patek Philippe watch can be found in different places, but it is always engraved somewhere on the case back. If it has a see-through case…

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Seiko

Seiko Serial Numbers with Production Dates and Movement Types

How is the Date Calculated The first digit of the serial number tells you the last digit of the year the watch was made. For many of Seiko’s movements we…

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Longines

Longines Serial Numbers with Production Dates

Please have in mind that the time table for the Longines serial numbers is not 100% accurate but very close to +/- 1 years. Dating back your vintage Longines watch…

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Omega

Omega Speedmaster Serial Numbers with Production Dates

Serial number dating from this table is not a 100% accurate way to date the watches, but is generally accepted to be accurate within 6 to 12 months.

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Rolex

Rolex Serial Numbers with Production Dates

The Rolex serial numbers are found between the lugs on the side of the case at the 6 o’clock side, behind the bracelet. This 4-8 digit number is engraved by Rolex on…

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Audemars Piguet

Audemars Piguet Serial Numbers with Production Dates

The letters in the Audemars Piguet serial numbers refer to a particular manufacturing series and also help us date Audemars Piguet watches that are newer than 1975. Below are the…

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Universal Geneve Serial Numbers with Production Dates

Rolex Reference Numbers (6-Digit)

Panerai Serial Letters with Production Dates

Vacheron Constantin Serial Numbers with Production Dates

Patek Philippe Serial Numbers with Production Dates

Seiko Serial Numbers with Production Dates and Movement Types

Longines Serial Numbers with Production Dates

Omega Speedmaster Serial Numbers with Production Dates

Rolex Serial Numbers with Production Dates

Audemars Piguet Serial Numbers with Production Dates

Rolex GMT-Master 16750

The Complete Guide to Rolex Daytona References

Universal Geneve Serial Numbers with Production Dates

Dating English Hallmarks on Silver and Gold

Rolex Metal Codes

Vacheron Constantin 222 – Ref. 46004/411

Rolex GMT-Master 6542

Vacheron Constantin 222 – Ref. 44018/411