Help Identifying this Seamaster Deville

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Hi Everyone,
I made an impulse purchase on this semester deville and I'm now trying to figure out the case model and what movement it might have. Since I am no watch maker and don't have the tools to open it, I'm a little stuck. I have included some images in the hopes someone on here can help me out. From the research i've done, I think I've narrowed it down to reference CK 14765 or 165.020. However, I haven't seen an example with the same case back and dial as mine. Is this a Franken? The watch has original crystal and crown and has an automatic movement. Case is 34mm in diameter and the watch, from what the seller told me, is from the 1960's. Any help is much appreciated! Thanks in advance!
Edited:
 
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Oops! Yes that is correct. My bad! Made the edit to the post.
 
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It looks good to me.
I have a similar watch (166.020) except mine has a black dial and is date version. Case back looks exactly the same as yours.

Edit: The bezel doesn’t look to be fitted very well and expect it could pop off very easily!
Edited:
 
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It looks good to me.
I have a similar watch (166.020) except mine has a black dial and is date version. Case back looks exactly the same as yours.

Edit: The bezel doesn’t look to be fitted very well and expect it could pop off very easily!

Thanks! So I guess mine is a 165.020 then? since there's no date?

Edit: Thanks for pointing out the bezel! I just put it back into place.
 
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Thanks! So I guess mine is a 165.020 then? since there's no date?
That would be my guess but there’s no way of knowing for sure without seeing inside the case back. The movement comes out the front on these so you will need a watchmaker with proper tools to take apart.

Here’s the dial side of mine, same markers and font layout. It dates to 1966/67.
Yours still has lume plots at the markers end, mine have been cleaned off.
 
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That would be my guess but there’s no way of knowing for sure without seeing inside the case back. The movement comes out the front on these so you will need a watchmaker with proper tools to take apart.

Here’s the dial side of mine, same markers and font layout. It dates to 1966/67.
Yours still has lume plots at the markers end, mine have been cleaned off.

Thanks!