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Please help me identify my first vintage Omega

O
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Hi everyone, I’m new to forums and also to vintage watches but I kindly ask your help on identifying this model / reference.

I bought it from a trusted seller and it was revised by Omega’s authorized service provider, but I cannot find this watch anywhere by its reference 2321-1. It simply doesn’t exist… by the serial number the watch is from 1947 and I found one similar 2242 from 1945.

Could you please help me? I’ve already tried every enthusiast website and database. P.S. the watch was only opened by the authorized watchmaker

Specs
35mm
Center wheel seconds
1947
Ref. 2321-1

Thanks in advance!

IMG_2727.webp

IMG_2729.webp

IMG_2730.webp

IMG_2731.webp
 
Dan S
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Each reference has many different dial variants, you won't always find one on the internet that has the exact same dial as yours. That's not really relevant. However, one of the two links I posted does have arabic numbers, although applied, not painted.

I posted two links. They are the same reference. According to the information you posted, they are the same reference and production run as yours. Both 37mm. If your watch is not 37mm, then it's not a 2321. It's better to open the watch, take your own photos, make your own measurements. Believing the information someone else gave you isn't the way it's done.
Edited:
 
O
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Dan S Dan S
Each reference has many different dial variants. That's not really relevant.
Thank you, I noticed on the first link that it was different from the second one. So I should not be worried, right? Thank you!
 
Dan S
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O OCDWatchOwner
Thank you, I noticed on the first link that it was different from the second one. So I should not be worried, right? Thank you!
If your watch is 35mm, something is wrong. But maybe you were given incorrect information.
 
JimInOz
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O OCDWatchOwner
Thank you, I noticed on the first link that it was different from the second one. So I should not be worried, right? Thank you!
Can you point out the differences?

Both watches in the links are 37mm 2321-1, the only difference is the dials, one described as re-painted, and the movements, both being from the caliber 30 family..

The ealier one is from 1939 with a caliber 30 SC T2 16p, the second one is from 1951 with a caliber 283 (also know as caliber 30 SC T3 PC AM).
 
O
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Dan S Dan S
Each reference has many different dial variants, you won't always find one on the internet that has the exact same dial as yours. That's not really relevant. However, one of the two links I posted does have arabic numbers, although applied, not painted.

I posted two links. They are the same reference. According to the information you posted, they are the same reference and production run as yours. Both 37mm. If your watch is not 37mm, then it's not a 2321. It's better to open the watch, take your own photos, make your own measurements. Believing the information someone else gave you isn't the way it's done.
I’ve opened and seemed everything fine, please see the photos attached. It has 35mm

IMG_2739.webp

IMG_2740.webp
 
Dan S
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O OCDWatchOwner
This is the one I bought - from this seller. He’s a trusted seller
Right, I found a few other hits for 2321-1 on the internet. They are all listed as 37mm, and often described as oversized or jumbo. You can draw your own conclusions. Normally one measures across from 8 to 2 to make the measurement more convenient, but I don't think that's going to convert your measurement from 35mm to 37mm.

The other watches have faceted lugs, but I think your case may have originally had those lugs, it's just extremely over polished. Or if not, maybe somebody managed to swap a case-back.

https://www.dorotheum.com/en/l/8545615/
https://timerediscovered.com/produc...b_gxOpP9LSfD2eH4KW6HQ1y8tMIHjbcRO0xYchnfUyC-E
https://www.worthpoint.com/worthopedia/vintage-omega-ref-2321-large-37mm-st-1778137594

Photos for posterity.

1764872478991.webp Screenshot 2025-12-04 at 11.21.31 AM.webp
Edited:
 
O
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Dan S Dan S
Right, I found a few other hits for 2321-1 on the internet. They are all listed as 37mm, and often described as oversized or jumbo. You can draw your own conclusions. Normally on measures across from 8 to 2 to make the measurement more convenient, but I don't think that's going to convert your measurement from 35mm to 37mm. The other watches have faceted lugs, but I think your case may have originally had those lugs, it's just extremely over polished.

Photos for posterity.

View attachment 3287135View attachment 3287136
Thank you for your help! I’m extremely satisfied and happy with the watch! I may take it to the authorized service provider and ask for more details. Thanks again
 
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