Help Identifying this Omega

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Hello,
I have the Omega Seamaster Automatic watch in the photos. I am unable and unwilling to try harder to remove the back in order to determine the model and calibre. Does anyone recognize this watch? It has a slightly grayish sparkly dial and is 35mm in diameter with 18mm lug width. I am not responsible for the scratches on the back and I do not wish to add to them.
Thanks in advance,
Dan
 
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Perhaps a 166.067, which would generally have a cal 565. If you google vintage Omega Seamaster sparkle dial, you be able to identify it pretty quickly for yourself. Of course, without opening it up, who knows what strangeness one might find.

Is there a particular reason you need to know the reference and caliber? We love for new members to take a few minutes to introduce themselves.
 
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Well sure from one Dan S. to another. I have been collecting watches for 3 or 4 years and have a nice selection including Rolex, Omega, Tudor and Seiko pieces. I love to find out all I can about the reference and movement and when it was made, etc. It's been a fascinating and fun adventure for me, particularly during Covid. I have always been interested in clocks and have built a number of them for sale and my own use (I don't make the movements).
 
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Well sure from one Dan S. to another. I have been collecting watches for 3 or 4 years and have a nice selection including Rolex, Omega, Tudor and Seiko pieces. I love to find out all I can about the reference and movement and when it was made, etc. It's been a fascinating and fun adventure for me, particularly during Covid. I have always been interested in clocks and have built a number of them for sale and my own use (I don't make the movements).

Welcome to OF. If you look around, you'll find Rolex and Seiko sub-forums here as well, and they are quite active.
 
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Your identification is doubtless correct, but I wouldn't use the phrase '166 series' personally. There is no such series unless you want to include every non chronometer rated Gents water resistant calendar equipped Omega since 1962. The first part of the case number indicates the basic watch spec, not the model or case shape. That tends to be indicated by the second part.