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Opened July 1999, zOwie is the Internet's first and longest running discussion forum dedicated to Omega brand watches.

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Re: Dating an Omega
In Response To: Dating an Omega ()

: Hello,

: I am trying to find out when my Omega PO 42mm
: was manufactured. Can I find this out using
: the serial number, and where/how? On the
: Omega site there is a list but it seems to
: fit them into batches of several years each
: and mostly for vintage models.

: Alternatively, does anybody know when the PO's
: started having the anti-counterfeit Omega
: sign engraved by lazer on the caseback?

: The reason for my asking is that I bought the
: watch new and am surprised that it does not
: hv the lazer engraving.

: Thanks in advance.

: Erik

Omega has published updated serial number charts in the recent book, Omega - A Journey Through Time.

Beginning in 1995, Omega split their serial number usage into small segments based on calibre and usage. In broad terms, there are separate sequences for manual chronographs (1861s), chronometers by calibre and non-chronometers by calibre.

Chronometers are numbered before being sent for testing; all other watches are numbered as they leave the factory.

However, there appear to be serious flaws in the information which makes it unusable for your purposes.

For instance, the chart shows 80 million numbers as first used in 2006. At least half the instances I know of from a sample of about 15 Omegas with 80 million numbers predate 2006, including a watch I purchased preowned in May 2005 and a member of another forum who has a chronometer certificate dated 2001 and purchased the watch in 2004.

You can:

1) get the chronometer certificate, but this will tell you when the movement was tested, which was outside of the watch and may not indicate when the watch left Switzerland

2) for CHF 50, purchase an extract of registers from Omega, which will tell you when it left Switzerland, but not the manufacture date. Presumably, they don't leave watches lying around unsold for very long, but . . .

3) ask the dealer you bought it from when they originally got it, which will give you an date it has to be older than

4) hope someone here can better answer your question!

Sam

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