Seamaster Cosmic 135.016 Authenticity Check (1968)

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inferiix

·Oct 26, 2025

Hi,
I'm looking at this 1968 Seamaster Cosmic 135.016 for sale by a private seller on Chrono 24.
Seller claims the watch is fully original, never serviced.

Based on the pictures, does it look authentic and original ? The face seems very clean for an untouched 55+ years old watch, is there anything indicating it could be a re dial ?
Is there anything in particular I should worry about before eventually buying it ?

Thanks !

 

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SOG53

·Oct 26, 2025

Have you seen and reviewed this thread? A must for a Cosmic buyer. There is a small size that is not always disclosed by sellers- make sure you know what size it is.

https://omegaforums.net/threads/seamaster-cosmic-club-pics-info-buyers-guide.144440/

Thread 'Seamaster Cosmic Club - Pics, Info & Buyer’s Guide' ·

Welcome to the Seamaster Cosmic Club!

Cosmic is one my favorites from the Seamaster line and I know many OF associates also appreciate these C-cased beauties, so let’s make a...

Nupero · Apr 8, 2022

 

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inferiix

·Oct 26, 2025

SOG53

Have you seen and reviewed this thread? A must for a Cosmic buyer. There is a small size that is not always disclosed by sellers- make sure you know what size it is.

https://omegaforums.net/threads/seamaster-cosmic-club-pics-info-buyers-guide.144440/

Thread 'Seamaster Cosmic Club - Pics, Info & Buyer’s Guide' ·

Welcome to the Seamaster Cosmic Club!

Cosmic is one my favorites from the Seamaster line and I know many OF associates also appreciate these C-cased beauties, so let’s make a...

Nupero · Apr 8, 2022

Thanks for the thread, I'll take a look at it.
This is indeed the smaller 33mm case, I have a small wrist so this wouldn't be a problem for me.

 

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SOG53

·Oct 26, 2025

inferiix

Thanks for the thread, I'll take a look at it.
This is indeed the smaller 33mm case, I have a small wrist so this wouldn't be a problem for me.

Have you tried on a 33 mm watch? It is very small most find it too small- they should be priced lower as a result just be aware.

 

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WestCoastTime

·Oct 26, 2025

The back of the watch case looks well worn but every other angle looks factory fresh. I'd regard that as kind of suspicious.

 

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hansaboy

·Oct 27, 2025

Greetings!
Check out the case - it should have brushing.
And the caseback would have som sharp edges also, and some text under "waterproof"

That is - if you want a fine one...?
😀

 

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drose224

·Oct 27, 2025

Great advice to buyer

 

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inferiix

·Oct 27, 2025

hansaboy

Greetings!
Check out the case - it should have brushing.
And the caseback would have som sharp edges also, and some text under "waterproof"

That is - if you want a fine one...?
😀

Thanks. The one I'm looking at is the 135.016, so the case is polished, not brushed. Here are some additional pictures the seller sent me

 

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hansaboy

·Oct 27, 2025

Well...the main question is - Do you like the Watch?

 

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hansaboy

·Oct 27, 2025

And compare with this one that was sold here on the Forum:

https://omegaforums.net/threads/exceptional-omega-seamaster-cosmic-135-016-original-box.182073/

Thread 'Exceptional Omega Seamaster Cosmic 135.016 + Original Box' ·

Up for sale is this gorgeous minimally worn Seamaster Cosmic. The beautiful silver sunburst crosshair dial has applied steel indices with what appears to be onyx inserts. The 33mm stainless steel...

SOLD

$ 700 USD

Rasputin · Mar 13, 2025

 

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Davidt

·Oct 27, 2025

inferiix

Thanks. The one I'm looking at is the 135.016, so the case is polished, not brushed. Here are some additional pictures the seller sent me

I believe it should still have a brushed top

 

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Dan S

·Oct 27, 2025

Just a quick tip. You might consider using the crop function in your photo app.

 

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Nupero

·Oct 27, 2025

Watch looks good and original. Correct polished top for this 33mm 135.016 reference. At 685€ it is a little bit expensive for a petite case variant, but if you really like it - buy it.