Seamaster Cosmic 18K

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Hi
I have inherited a seamaster cosmic 18k solid gold and am curious how much it weighs without a bracelet, what year were they sold and what kind of bracelet were they sold with?
Its a 166.026
I didnt find any info by searching here in the forum...
Sorry for the photo quality
 
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Hi,
Welcome to the forum. I am no expert but from what I have read ( mostly from ads) it usually weighs about 30 gms plus. The c cases, it seems to me, tend to be heavier than other styles.
From what I have seen they were a 70’s style ( came out in the 60s) and commonly came with “bricks“ style bracelets.
There are entire threads dedicated to c cases in the forum and experts concentrating their collections on them. They will be able to give more accurate information. Also the information to date them exactly is inside and an opened up photo will help.
lovely watch and wear in good health.
Edited:
 
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Thanks and thanks again!
how can you tell its a C case? can you also see it inside whit some kind of stamp or something?
 
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Hi,
Welcome to the forum. I am no expert but from what I have read ( mostly from ads) it usually weighs about 30 gms plus. The c cases, it seems to me, tend to be heavier than other styles.
From what I have seen they were a 70’s style ( came out in the 60s) and commonly came with “bricks“ style bracelets.
There are entire threads dedicated to c cases in the forum and experts concentrating their collections on them. They will be able to give more accurate information. Also the information to date them exactly is inside and an opened up photo will help.
lovely watch and wear in good health.


Thanks!
I will look in the forum for c cases
 
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Thanks and thanks again!
how can you tell its a C case? can you also see it inside whit some kind of stamp or something?

C case is a style of case.

Screen Shot 2024-01-22 at 9.33.46 AM.png
 
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It is solid gold, I recognize the stamp.

Here are some fotos of my 18k cosmic on a solid gold mesh strap and on a thicker leather strap (both third party)
I hope that helps.

IMG-20230401-WA0002.jpg

IMG_20230406_110636.jpg

IMG_20230125_220053.jpg

IMG_20230128_150908.jpg

IMG_20230207_100412.jpg

IMG_20230205_140718.jpg

IMG_20230630_142053.jpg

IMG_20230630_141949~2.jpg

20240121_120043.jpg

20240121_120233.jpg

Have a nice day.
tekarun
 
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It is solid gold, I recognize the stamp.

Here are some fotos of my 18k cosmic on a solid gold mesh strap and on a thicker leather strap (both third party)
I hope that helps.

IMG-20230401-WA0002.jpg

IMG_20230406_110636.jpg

IMG_20230125_220053.jpg

IMG_20230128_150908.jpg

IMG_20230207_100412.jpg

IMG_20230205_140718.jpg

IMG_20230630_142053.jpg

IMG_20230630_141949~2.jpg

20240121_120043.jpg

20240121_120233.jpg

Have a nice day.
tekarun
Thanks!
Really nice watch
 
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Hi again
The reason for all the questions, is that i leaved it for service and when i got it back the guy in the service place said i weigt 25gr, i first didnt think about how light it was when i got it back, but when i got home i started feel that something was wrong!
Especially when i compared it to my omega geneve 18k, their was almost no difference, as it was before i left them both for service.
When you look at Tekarun's pictures, you can see that it should weigt somewhere around 30g, just the boett
i'am new at this clock thing and i'am worried that i got the wrong watch or wrong boett or something else....
But thanks for all your help, i will let another watchmaker look at it, i hope that i'am wrong and all is ok
 
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You should have requested a photo of the case-inside at the watchmaker.
It is the only real way to find out if it is 18k.
Furthermore a photo of the serial number also would have been nice, to track down the exact year of production (serialnr is on the movement).

It is super annoying, complicated and also risky to open these watches at the crystall, the less you try the better.
 
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You should have requested a photo of the case-inside at the watchmaker.
It is the only real way to find out if it is 18k.
Furthermore a photo of the serial number also would have been nice, to track down the exact year of production (serialnr is on the movement).

It is super annoying, complicated and also risky to open these watches at the crystall, the less you try the better.
Hi
i got a photo from the inside, but i wasn't present when he opend it,thats my mistake,also i could have wieghed it my self, so the question still remains about the weight at 25 gram.
It should have the same weight as your boett.
maybe is just a mistake, i'll will go and se watchmaker and ask him to open it, i feel i can't just let that go!
To be continued.....
Thanks for all the help
 
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Mysterious... I hope that the 5-6g did not get polished off. 🙁
However, that would be approx 20% of the case.. which is unlikely.
 
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Mysterious... I hope that the 5-6g did not get polished off. 🙁
However, that would be approx 20% of the case.. which is unlikely.
I dont think it been polished of or at least i hope not..., see pictures before and after
Hard to tell becourse of the bad photo...
 
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I love that watch. 🥰

In case of polishing, you can tell best in checking the case back and the edges of the watch.
Got more pictures?
 
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I love that watch. 🥰

In case of polishing, you can tell best in checking the case back and the edges of the watch.
Got more pictures?
Yes i can take some now!
 
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😗😗
I love that watch. 🥰

In case of polishing, you can tell best in checking the case back and the edges of the watch.
Got more pictures?
I also think the dails is not the same, but that can be the light‍😗
 
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I also took some pictures really fast in order to give you another reference.
Hope to assist.

1000064059.jpg

1000064061.jpg

1000064062.jpg

1000064069.jpg

1000064070.jpg

1000064066.jpg
 
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I also took some pictures really fast in order to give you another reference.
Hope to assist.

1000064059.jpg

1000064061.jpg

1000064062.jpg

1000064069.jpg

1000064070.jpg

1000064066.jpg
Really nice watch, mine is not so nice🙁
 
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Yours has just been worn, mine did just sleep in a drawer for decades. For me it is important that there is no polishing, and I have already seen 18k Cosmics polished to death, no indication of any letters on the case back, ugly edges. etc.

Love your dial (which has certainly not been changed), and still.. a 18k Cosmic is rather rare.

Also check your crystal, I hope your watchmaker used a legit one (if changed). You can tell by the Omega logo in the middle.
Let me try if I can show you...
.. I think you can see it on those pictures.

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