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Omega CK2639 Assistance

bcrdukes
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Hi Omega Forum Members,

Happy New Year to all of you. I hope you all enjoyed the holiday period.

This is my first foray into vintage Omegas and I came across an Omega CK2639 as part of a recent acquisition. The watch, overall, is quite nice, but it is evident it needs servicing as the accuracy is all over the place.

Upon receipt of the watch, as with anyone, wound the watch and pulled the crown to stop the second hands at the 12 o'clock position. The seconds hand stopped as I expected. But later in the evening (about 12 hours in) I noticed the watch was running a minute fast and proceeded to re-adjust the time.

I noticed the seconds hand stopped for like, a second, and started to move. This was a surprise. This morning, the same thing happened and I can't get the seconds hand to stop. Any advice, hints, tips, or tricks on what could have happened or what would need to be replaced? My intention is to do a full service on this. Thanks in advance!

Regards,

bcrdukes
 
X350 XJR
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The second hand isn't supposed to stop when the crown is pulled out, the cal 265 / 266 movement is not a hacking movement. That it stopped at 12 o'clock once is simply a fluke.
 
bcrdukes
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@X350 XJR

Thank you for that - consider me educated on the matter and the movement. Much appreciated!
 
MtV
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There’s a way to “cheat”: Pull out the crown to the position in which you adjust the time, then apply just a bit of pressure as if to set the time anti-clockwise. This usually stops the second hand for as long as you hold the crown. Then, once the second hand is in the position you want it to be, set the minute and hour hand by moving clockwise. The second hand will keep running while you do that.

Wether this is healthy for the movement or not has been up for debate here but if I remember correctly, it should be fine.
 
X350 XJR
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How about posting some photos of your watch, we'd love to see it, we thrive on pictures here.
 
bcrdukes
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Thank you both! Open to any comments or suggestions on the watch.
Here are two photos. Happy to post more photos upon request.
20230106_211530784_iOS.jpg 20230106_222641581_iOS.jpg
 
jjen
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The fact that it stopped when you pulled the crown is more of a problem than if it kept moving. What it is doing now is better than what it was doing. Maybe the movement was a little gummed up or something
 
bcrdukes
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Thank you for that.

Any suggestions on servicing this and what to have replaced, updated, polished etc.? While this watch may not rise to the likes of a Rolex Daytona, I plan on keeping this with no intention of selling it so it will be a "forever" watch. I will treat this watch as a learning opportunity if anything. Thanks in advance!
 
Dan S
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If you plan to wear and use the watch, then have the movement serviced. A watchmaker will tell you what is needed once the movement is disassembled and inspected.

Personally that's all I'd do. But if you want to replace or restore other parts, that's your choice because it's your watch.

The dial is damaged, but there's not much to be done about it except perhaps hunting down a correct replacement and matching hands. Not worth the trouble IMO.

The case has already been polished, but it's tolerable. I wouldn't make it worse with more polishing.
 
jjen
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It would help if you said where you are located and then maybe someone can point you in the direction of a good watchmaker
 
bcrdukes
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Dan S Dan S
If you plan to wear and use the watch, then have the movement serviced. A watchmaker will tell you what is needed once the movement is disassembled and inspected.

Personally that's all I'd do. But if you want to replace or restore other parts, that's your choice because it's your watch.

The dial is damaged, but there's not much to be done about it except perhaps hunting down a correct replacement and matching hands. Not worth the trouble IMO.

The case has already been polished, but it's tolerable. I wouldn't make it worse with more polishing.

Yes, I plan to wear the watch casually. I feel that it is fair that a service and any internals within the movement that need to be replaced shall be carried out as such.

Regarding replacement or restoration of other parts - I feel there will be diminishing returns. Although, it would be neat to find out if replacement parts are even available for this watch. (Genuinely curious.)

The dial itself - What are the obvious signs it is damaged?

@jjen - I am located in the Greater Toronto Area. I believe one of the well known watch makers is here on the forum.
 
Dan S
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bcrdukes bcrdukes
The dial itself - What are the obvious signs it is damaged?

There is visible deterioration all over the dial, especially around the subdial, the numerals 10 and 11, etc.
 
bcrdukes
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Thank you, Dan S.

What would cause this deterioration and how would one have prevented this? While doing some homework, I read somewhere (I forget where - apologies) this is Radium burn? Not sure if true or if I have been misinformed.
 
Dan S
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It's just a guess, but it is probably water damage.
 
bcrdukes
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Much appreciated. I hope to find out more when I get this serviced.

Out of curiosity, how much would one of these go for in good condition?
 
Dan S
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bcrdukes bcrdukes
Out of curiosity, how much would one of these go for in good condition?

With a clean dial, I suspect it might sell for $600-$800 between collectors. A dealer would ask more. I think that the 2639 is a particularly nice reference, personally. The 36mm size is perfect for wearing, the case has a lovely shape, great 30mm caliber, screw-down caseback, etc.

I have a black dial 2639 that was one of the first vintage watches I ever bought. I gave it to my wife many years ago, and it's one of her favorites.
 
bcrdukes
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Thankfully my cost was within the range. Although I wished now to have done more homework and purchased something from reputable members on the forum. 📖
 
__ryan__
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Nice watch.

bcrdukes bcrdukes
While doing some homework, I read somewhere (I forget where - apologies) this is Radium burn?

Radium burn tends to occur when radium-filled hands are left in one position for a long time. You would see a burn pattern roughly in the shape of the hand lume. I imagine it can also occur around the numerals.

Your numerals look to be radium, so I wouldn't be opening the case and sniffing around in there.
 
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