For most of the 19th and 20th century, watchmakers (in their role as repairpersons) etched the date of service inside the case back.
A 50-year-old watch could have a dozen tiny dates etched inside.
Comparing the number to the manufacturer’s listings can date the manufacture to the approximate year.
Watches like Elgin, Waltham and Omega kept excellent records, allowing for good dating of their watches.
Use a jeweler's loupe to inspect the movement for a serial number.
Serial numbers can range from six to nine digits and may include a combination of letters and numbers. Check the number against the watchmaker’s serial number lists.
Important: The “Extract of the Archives” is only available in English.
US Customers: Extract of the Archives are not available onlinebut can be ordered through your nearest OMEGA boutique.
This service costs CHF 120.00 (VAT excl.) per extract, or the equivalent in local currency.
Movement number How do i find my omega wristwatch's movement number?
You will find the number engraved directly on the movement itself.
The best way to identify the date of manufacture of a watch is to locate the serial number on the watch’s movement.
The movement is the spring-loaded mechanism the runs and regulates the timepiece.