My Early Seamaster 120 Divers. What to look for and what to avoid.

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SAFETY RED (perhaps ORANGE) SECONDS PYLON / BATON

It seems the Seamaster 120 also ... came /was offered with ... a RED (ORANGE?) seconds sweep hand as evidenced by this Omega catalogue introduction for the SEAMASTER 120.
The UltraDiver?

Is it the same as this one from 1969?

 
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The UltraDiver?

Is it the same as this one from 1969?


sadly the photo is of poor quality ... but i would rather look for the SECONDS SWEEP in RED (ORANGE?) made for the OMEGA MOVEMENT used for the 120
 
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sadly the photo is of poor quality ... but i would rather look for the SECONDS SWEEP in RED (ORANGE?) made for the OMEGA MOVEMENT used for the 120

Both the 120 and the Geneve 136.041 use a 6xx movement. The Geneve used a 613 and the 120 was a 601 (from memory, but I can go check by opening one up if needed).
 
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the handset meant for use with correct Omega movement
Both the 120 and the Geneve 136.041 use a 6xx movement. The Geneve used a 613 and the 120 was a 601 (from memory, but I can go check by opening one up if needed).

the handset meant for use with correct Omega movement would be the best starting point
 
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Both the 120 and the Geneve 136.041 use a 6xx movement. The Geneve used a 613 and the 120 was a 601 (from memory, but I can go check by opening one up if needed).

another route to take would be securing the parts ref. number for the vintage seconds sweep hand used by the 120 and see if it was offered / available / came NOT just in "SIL and WHT" but was also available " RED (Orange?) "
 
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Both the 120 and the Geneve 136.041 use a 6xx movement. The Geneve used a 613 and the 120 was a 601 (from memory, but I can go check by opening one up if needed).

The 120 is the 565 movement, although min is fitted with the 561. No clue why.

 
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The 120 is the 565 movement, although min is fitted with the 561. No clue why.


There’s a manual wind SM120 with cal 613
 
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There’s a manual wind SM120 with cal 613

True, i was thinking about the 166.027. But there are more options ofcourse.
 
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The serial number of the movement inside ur 120 should match the production run of the model ...

1967 Omega Seamaster 120





Edited:
 
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Would anyone be willing to confirm (or refute) my suspicions that this 120 that's come up on a local auction site is a fake? (Sorry no movement photos)

The lack of splayed 12 o'clock indicy and the short minute markers got me thinking, not too mention the poor typography on the dial and the weirdly small font in the date window.

What do you think am I being overly suspicious or are my concerns justified?
Edited:
 
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Would anyone be willing to confirm (or refute) my suspicions that this 120 that's come up on a local auction site is a fake? (Sorry no movement photos)

The lack of splayed 12 o'clock indicy and the short minute markers got me thinking, not too mention the poor typography on the dial and the weirdly small font in the date window.

What do you think am I being overly suspicious or are my concerns justified?

That actually looks like a perfectly genuine SM120 that’s been redialed.
 
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Thanks @Davidt I thought the dial looked off, that date wheel also looks pretty janky. Here's a comparison of a legit date wheel from a picture posted in this forum followed by the watch in question, both scale and typeface are wrong. I will definitely stay away from this one...
 
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The case, bezel and bracelet (which has the correct endlinks) look surprisingly good- so the dial and date wheel are really odd. This may be a cobbled watch, but for the right price, it could be worth the sum of the parts.
 
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Hello all together, my first hit here. ;D
So here is mine. I'm new to the game and my first lucky find is an omega 120m in small, the 31mm version. Love it so far, but I have two questions I can't find an answer to. Maybe someone can help here.; )

1. Anybody thought about a glass back for this small version and if yes, where to get one?
2. My bezel is rotating in both directions and not really "clicking" is that normal or just because it's old?

The watch strap isn't perfect and work in progress. And I have a winered original spare bezel. Unsure if I should mount this one.
 
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Hello all together, my first hit here. ;D
So here is mine. I'm new to the game and my first lucky find is an omega 120m in small, the 31mm version. Love it so far, but I have two questions I can't find an answer to. Maybe someone can help here.; )

1. Anybody thought about a glass back for this small version and if yes, where to get one?
2. My bezel is rotating in both directions and not really "clicking" is that normal or just because it's old?

The watch strap isn't perfect and work in progress. And I have a winered original spare bezel. Unsure if I should mount this one.

the BEZEL is a Bi- directional NO CLICK friction mounted kind which is correct, they came in 2 sizes 37MM (for men) and a 31MM (for women)
Edited:
 
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Hello all together, my first hit here. ;D
So here is mine. I'm new to the game and my first lucky find is an omega 120m in small, the 31mm version. Love it so far, but I have two questions I can't find an answer to. Maybe someone can help here.; )

1. Anybody thought about a glass back for this small version and if yes, where to get one?
2. My bezel is rotating in both directions and not really "clicking" is that normal or just because it's old?

The watch strap isn't perfect and work in progress. And I have a winered original spare bezel. Unsure if I should mount this one.
That’s a cutie! Exhibition backs are available on eBay but you will have to measure your current back with a micrometer to make sure you get the correct fit- and that doesn’t mean that a generic back will have the right thread pitch or depth. Exhibition backs are a novelty of the last 25 years- there aren’t many options for vintage other than trial and error.
 
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the BEZEL is a Bi- directional NO CLICK friction mounted kind which is correct, they came in 2 sizes 37MM (for men) and a 31MM (for women)
Wow, that was fast. Thank you so much for the information. I had already feared that this was a defective bezel.
 
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That’s a cutie! Exhibition backs are available on eBay but you will have to measure your current back with a micrometer to make sure you get the correct fit- and that doesn’t mean that a generic back will have the right thread pitch or depth. Exhibition backs are a novelty of the last 25 years- there aren’t many options for vintage other than trial and error.

Thanx for the compliment. Yes, I love it. And as my wrist are relatively small, it fits nice on my arm. As I said, I'm new to the game. I've read that some old automatic watches had a mechanism that let wind it up, if it sat too long on the shelf. Are these old Seamaster that kind? Or ist it just a little "shakin" and it starts again?

And thanx for the info about those exhibition backs. I saw so many glass backs on todays watches, so I thought that this was a common modification. But of course, especially the small 31mm version might not be the first choice to build a glass back for. 😁 So I'll think about that and yes, maybe I'll give it a try with some aftermarket-product after measuring. But maybe not. 😁