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Is it an unworn Omega Seamaster Calendar or something else ?

vicsdca
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Can this watch be factory original as its owner claims, supposedly an unworn piece?

I expected a different crown for a Calendar and the "S" of Seamaster makes me think it's from the 60s, but I thought these watches were from the 1950s. I suppose it must be a 2627 case with caliber 353 but no information on that so maybe it is something else. I'm also wondering if the strap and buckle are period correct. I thought the logo on a square buckles came later.
So I'm thinking case from the 50s. Dial from the 60s. buckle from the 70s. Crown? Hands?
Or am I completely wrong?
What do you guys think?

nos 1.jpg nos 2.jpg nos 3.jpg nos 4.jpg nos 5.jpg nos 6.jpg
Edited:
 
X350 XJR
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Service dial, service crown, service strap/buckle. They may be genuine Omega parts, but they are not original to the watch, nor truly "correct" for it.
 
vicsdca
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X350 XJR X350 XJR
Service dial, service crown, service strap/buckle. They may be genuine Omega parts, but they are not original to the watch, nor truly "correct" for it.

Thanks a lot for confirming!
 
VetPsychWars
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vicsdca vicsdca
Can this watch be factory original as its owner claims, supposedly an unworn piece?

The case is indeed sharp but too scratched to be "unworn". I concur with the above, not that you need it.

Tom
 
MSNWatch
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This is how things should look for that case:

9286199655_69dda1db29_c.jpg
 
VetPsychWars
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On my two, the bezel is raised above the lugs some. Interesting to see these are slightly different.

Tom
 
gatorcpa
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X350 XJR X350 XJR
Service dial, service crown, service strap/buckle. They may be genuine Omega parts, but they are not original to the watch, nor truly "correct" for it.
Beg to differ with you, but only very slightly. The dial is an Omega replacement dial and is correct for this case reference.

It is not original, as you pointed out.

The case itself is in excellent condition. It too may be an Omega replacement part.

There is really no way to know for sure.
gatorcpa
 
Canuck
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The date at 6 movement is a calibre 355. Likely from the 1950s. I can’t say for sure from the one picture that shows the back view of the case, but it looks like a gold shell. Speaking for myself, there is not a lot about that watch that would bother me.
 
gatorcpa
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Canuck Canuck
The date at 6 movement is a calibre 355.
The screw back case (Ref. 2627) generally contains a cal. 353, but I have seen some with cal. 355. These are both date at 6.

The later Ref. 2757 snap back case ("beefy lugs") are all cal. 355.

The main difference is that the cal. 355 has the swan's neck fine regulator.
gatorcpa
 
gatorcpa
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vicsdca vicsdca
What do you mean by Omega replacement dial that is correct for this reference but not original?
I mean a dial made by Omega (or their contractor) that was made specifically to replace the original dial if damaged.
gatorcpa
 
gatorcpa
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vicsdca vicsdca
Genuine Omega replacement dial: yes
Correct dial and font for watch: yes
Genuine Omega replacement dial: yes
Correct dial: yes
Correct font: no
gatorcpa
 
VetPsychWars
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vicsdca vicsdca
Perhaps due to polishing or the angle of the photos.

Both are possible. I think the cases shown here are later than what I have?

Tom
 
vandesteeg
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VetPsychWars VetPsychWars
Both are possible. I think the cases shown here are later than what I have?

Tom

What’s the serial on yours? Mine is from 52.
 
Maskelyne
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gatorcpa gatorcpa
The screw back case (Ref. 2627) generally contains a cal. 353, but I have seen some with cal. 355. These are both date at 6.

The later Ref. 2757 snap back case ("beefy lugs") are all cal. 355.

The main difference is that the cal. 355 has the swan's neck fine regulator.
gatorcpa

That´s right. I post som pictures of an 2757-3 with it´s movement. From 1953, with a slightly deteriorated dial & case. 😁

Omega-Seamaster,-bumper-cal-355,-tavla-1.jpg Omega-Seamaster,-bumper-cal-355.jpg
Edited:
 
VetPsychWars
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vandesteeg vandesteeg
What’s the serial on yours? Mine is from 52.

Not sure on this one, it's a caliber 502 where the case is dual marked KX 6275 and also 2627.

Tom
 
IMG_0163.jpeg
Kargol
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gatorcpa gatorcpa
Beg to differ with you, but only very slightly. The dial is an Omega replacement dial and is correct for this case reference.

It is not original, as you pointed out.

The case itself is in excellent condition. It too may be an Omega replacement part.

There is really no way to know for sure.
gatorcpa
How do you guys know it’s a service dial?
 
VetPsychWars
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Kargol Kargol
How do you guys know it’s a service dial?

The stick markers. None of these watches as near as many of us have seen were originally made with stick markers. Most are shields and arrows or numbers and arrows.

Tom
 
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