Dating omega watches serial number

It was easily damaged if not handled with great care by watchmakers and was known to sag, causing position errors or worse, and there were claims that some of its characteristics changed with aging.Hamilton's experience with the original Elinvar quickly told them that they needed to find something better, and that was Elinvar Extra, introduced c.1940., initially on the all-new railroad grade 992B and special WWII timepieces, and eventually to all Hamilton domestic production.

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Most vintage Swiss pocket watches did NOT have serial numbers and can't be dated by this method.You should consult the serial number table for the specific brand of watch movement you are trying to date by selecting a company from the menu on the left.Not all vintage watches can be dated using the serial number.Cross reference the Movement number with the case number to find the time scale of when your watch was produced.Rolex Oyster Case Listings 1926 – 2003 Rolex watches are dated by a serial number which corresponds to the actual manufacture date.