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Omega 2572-7 sc

konung39
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Hello everyone!
I came across this model of women's Omega. Please tell me a couple of questions.
Firstly, I don't really understand how the movement is attached to the case. Around the movement there is a stamped insert with 4 tongues that simply rest against the back cover and press the mobement to the front of the case by the dial. And that's it. Is that how it should be?
On omegawatches.com this model is listed as seamaster, and the movement is listed as "automatic".

https://www.omegawatches.com/ru/watch-omega-seamaster-omega-ck-2572?ysclid=m53kz2l1q0934246495
Is that correct? Was the mechanism replaced in this watch?

Screenshot_20241225-093648_Chrome.webp 20241225_092917.webp 20241225_092934.webp 20241225_092953.webp 20241225_093007.webp
 
mac_omega
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The movement holder ring with flaps is well known from other Omega watches. It is original.
 
konung39
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mac_omega mac_omega
The movement holder ring with flaps is well known from other Omega watches. It is original.
Thank you!
And what can you say about the movement, is it as it should be or should it be automatic?
And I don't understand why on omegawatches this model is listed as seamaster, just because of the screw-down case? There is no seamaster inscription anywhere on them.
 
Dan S
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Early Seamaster watches did not always have Seamaster written on the dial.

There seems to be a discrepancy in the Omega database regarding that reference. This case would appear to be too small for a cal 352, which is a bumper movement. It appears that there may have been a transcription error where 352 was substituted for 252.
 
konung39
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Dan S Dan S
Early Seamaster watches did not always have Seamaster written on the dial.

There seems to be a discrepancy in the Omega database regarding that reference. This case would appear to be too small for a cal 352, which is a bumper movement. It appears that there may have been a transcription error where 352 was substituted for 252.
Thank you!
My watch is about 1951 by the serial number of the movement.
I found this thread:

https://omegaforums.net/threads/ladies-omega-seamaster-2572.165803/ Cover Image
Thread 'Ladies Omega Seamaster 2572' ·
Hello
Not too much on the forum I can see about these 1950's ladies watches. I also haven't seen a picture with Seamaster on the dial for the 2572. I bought this recently on ebay for my sister in...
eldoctore ·
there is a newer watch, about 1954, and with the same movement, a different mount in the case.
I wonder from what year they started to mark them as seamaster.
 
gatorcpa
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Dan S Dan S
There seems to be a discrepancy in the Omega database regarding that reference.
Yes, I think it’s just a typographical error. Here is a listing for another Omega with cal. 252 that shows it as manual winding:

https://www.omegawatches.com/en-us/watch-omega-seamaster-omega-ko-2968

Here is a picture from the old Ranfft database:

1735146231706.webp


konung39 konung39
I wonder from what year they started to mark them as seamaster.
I think the “Seamaster” name began appearing on Omega dials sometime around 1951, but not all models at first. Gradually phased in.

Hope this helps,
gatorcpa
 
konung39
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gatorcpa gatorcpa
Yes, I think it’s just a typographical error. Here is a listing for another Omega with cal. 252 that shows it as manual winding:

https://www.omegawatches.com/en-us/watch-omega-seamaster-omega-ko-2968

Here is a picture from the old Ranfft database:

1735146231706.webp



I think the “Seamaster” name began appearing on Omega dials sometime around 1951, but not all models at first. Gradually phased in.

Hope this helps,
gatorcpa
Thsnks! This is very helpful information 👍👍
 
konung39
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Please tell me, is there radioactive paint on the hands and hour markers in this model?
 
Deafboy
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konung39 konung39
Please tell me, is there radioactive paint on the hands and hour markers in this model?
yes.
 
konung39
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Deafboy Deafboy
yes.
Oops. I hope it wasn’t very radioactive; it no longer glowed in the dark. I thought it was just dirt when it fell off 😬
 
Deafboy
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konung39 konung39
Oops. I hope it wasn’t very radioactive; it no longer glowed in the dark. I thought it was just dirt when it fell off 😬
What happened to the "dirt" after it "fell off"?
 
gatorcpa
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konung39 konung39
Oops. I hope it wasn’t very radioactive; it no longer glowed in the dark. I thought it was just dirt when it fell off 😬
Radium has a half-life of about 1,800 years. So I'm sure it was quite radioactive. The reason it didn't glow is that the fuel material (generally zinc or copper) bound to the radium had long since burned out.

So long as you didn't eat it, you personally should be OK. However, you inadvertently violated several laws regarding the proper handling and disposal of radioactive material.
gatorcpa
 
konung39
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Deafboy Deafboy
What happened to the "dirt" after it "fell off"?
I wiped everything I could with a damp cotton pad, but apart from a couple of grains in the bag where the disassembled watch had been, I didn't see anything else. I tied all the cotton pads and the bag into another bag and threw it in the trash 😅😬
 
konung39
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gatorcpa gatorcpa
Radium has a half-life of about 1,800 years. So I'm sure it was quite radioactive. The reason it didn't glow is that the fuel material (generally zinc or copper) bound to the radium had long since burned out.

So long as you didn't eat it, you personally should be OK. However, you inadvertently violated several laws regarding the proper handling and disposal of radioactive material.
gatorcpa
In general, there were no pieces of paint falling off inside the watch case when I took it apart. However, on four or five marks the paint had fallen off a long time ago, from the previous owner. The paint fell off on the hour hand, and that's what I noticed. Perhaps I broke the law when I bought this watch, because they should have detained it at the border, but they didn't)
 
gatorcpa
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konung39 konung39
Perhaps I broke the law when I bought this watch, because they should have detained it at the border, but they didn't)
Not something you should be admitting to in a public forum, but OK.
gatorcpa
 
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