Omega 2640 Jumbo steel bezel/retention ring.

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EdtheAussie

·May 4, 2021

Hi Everyone,

Bought this lovely 2640 'jumbo' (measuring in at a whopping 36mm!), but it's missing the small steel bezel or is it a retention ring for the crystal?

Is it a specific part, or could I see if my watchmaker might have a spare that fits? - I had a look online but had trouble actually describing/searching for it.

Cheers! (It's been a while)

 

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SkunkPrince

·May 4, 2021

Your crystal has a tension ring inside.

Case matches the Omega Vintage database.

https://www.omegawatches.com/media/...c37c391/o/m/omega-vintage-other-ck-2640-l.jpg

 

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watchyouwant

·May 4, 2021

Find a nice member with that watch here, have him remove his bezel and have a few machined and pay him for his efforts. Then you have yours adapted to your case by your watchmaker and sell the other machined ones to recover your costs. Win-Win.

 

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SkunkPrince

·May 4, 2021

watchyouwant

Find a nice member with that watch here, have him remove his bezel and have a few machined and pay him for his efforts. Then you have yours adapted to your case by your watchmaker and sell the other machined ones to recover your costs. Win-Win.

Except his bezel is intact, near as I can tell.

 

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ConElPueblo

·May 4, 2021

From your photos it looks as if the retention ring is still there - the reflection of the indicies indicate that.

However, it looks as if it is gold coloured?

 

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omegastar

·May 5, 2021

The Omega 2640 and 2639 have a two piece waterproof case.

 

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S.H.

·May 5, 2021

ConElPueblo

From your photos it looks as if the retention ring is still there - the reflection of the indicies indicate that.

However, it looks as if it is gold coloured?

Indeed, looks like a mismatched crystal to me.

 

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EdtheAussie

·May 5, 2021

It may not be obvious from my photo, but on my piece there isn't the angled metal ring (shown above on a different 2640, and which i have seen on other vintage seamasters etc...), the case around the crystal is very flat.

I'm not sure what you would call this part. I may have misnamed it as the retention ring, as I know they are on the inside of speedmaster crystals.

 

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SkunkPrince

·May 5, 2021

If there was a missing bezel, there would be a ridge for it to attach to, and I see nothing like that. I believe it is a case varation or at worse a mis-matched case back.

As for the gold retaining ring inside the crytal, his numerals and hands are gold, so I don't see that necessarily as an issue, though iti might have been silver from the factory.

 

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watchyouwant

·May 5, 2021

Lousy picture, Ed..... But: the flat step is where the bezel clicks in. It is missing. See the crown side pics with the left lug. The gap there is where the bezel would bridge the gap. So, again, bezel needed. Kind regards. Achim

 

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EdtheAussie

·May 5, 2021

watchyouwant

Lousy picture, Ed..... But: the flat step is where the bezel clicks in. It is missing. See the crown side pics with the left lug. The gap there is where the bezel would bridge the gap. So, again, bezel needed. Kind regards. Achim

Thanks mate 😜,

What happens when you try to take photos late night after studying 🙄.

 

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watchyouwant

·May 5, 2021

EdtheAussie

Thanks mate 😜,

What happens when you try to take photos late night after studying 🙄.

Studying ? Whisky labels ? Stay safe....

 

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ConElPueblo

·May 6, 2021

@EdtheAussie and @watchyouwant - I have had several 2639s which is the same case but with a decentral seconds hand and none of these have had separate bezels. I have had only one 2640, I believe. The case is a two piece construction, case back and "mid case".

Note that there are variances of the 2639/2640 case; some have wider "hips" and some are slimmer in the design. It would seem that the one with the wider hips have a more angled protusion towards the crystal whereas it is flatter on the slimmer one.

For reference, here is one with an angled bezel:


From here.

Note that there is no removable bezel.

Ed, yours look perfectly fine to me.

 

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ConElPueblo

·May 6, 2021

EDIT: The gold cap 2640 I believe is different.

 

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S.H.

·May 6, 2021

I don't see a bezel missing from Ed 's pictures either, it is usually rather obvious when it is not fitted.

 

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watchyouwant

·May 6, 2021

Good to hear ! I learn every day. Thanks, guys !

 

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ConElPueblo

·May 6, 2021

watchyouwant

Good to hear ! I learn every day. Thanks, guys !

You did make me bloody nervous for a while 😁

 

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EdtheAussie

·May 8, 2021

Thanks everyone, learn something new every day too.

Don't mind a bit of enthusiastic discussion 😉

@ConElPueblo @watchyouwant @SkunkPrince