Need help omega crystal

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Hello OF
I just purchased this omega 168.004.
But there are scratches on original crystal.
I want to replace with omega crystal.
Anybody know what is the part number?
Thanks for your help!
 
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Just polish them out. Or are they too deep?
 
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If you do need a new crystal, Cousins still have a couple in stock.

 
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Just polish them out. Or are they too deep?
I will try to polish and see the result first.
Thanks
 
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What do you think about the places marked in red?
All normal. The bridge where it says 24 jewels, is where they stamp about the chronometer stuff, for a chronometer. The other is the serial number, normal.
 
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What do you think about the places marked in red?

@SkunkPrince, I think he's referring to this.




It's possible the rotor and stamped "chronometer" bridge was changed out to resolve rotor wear issues, as evidenced by the circular marks in the caseback.

Only an extract from Omega archives will provide an answer.
 
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@SkunkPrince, I think he's referring to this.




It's possible the rotor and stamped "chronometer" bridge was changed out to resolve rotor wear issues, as evidenced by the circular marks in the caseback.

Only an extract from Omega archives will provide an answer.
Is the bridge replaced? The bridge looks different color. Does it affect the value?
 
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@SkunkPrince, I think he's referring to this.




It's possible the rotor and stamped "chronometer" bridge was changed out to resolve rotor wear issues, as evidenced by the circular marks in the caseback.

Only an extract from Omega archives will provide an answer.
I can see the circular marks inthe caseback It looks like the bridge was replaced some time before.
 
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What do you think about the places marked in red?
I think the entire autowinding mechanism was replaced from a non-chronometer movement, like a cal. 562, 565, etc.

We would call this a Frankenwatch.

Sorry to be the bearer of bad news.
gatorcpa
 
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I think the entire autowinding mechanism was replaced from a non-chronometer movement, like a cal. 562, 565, etc.

We would call this a Frankenwatch.

Sorry to be the bearer of bad news.
gatorcpa
How do you think about cal 561 with serial number 19xxx in ref 168.004!!!
 
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How do you think about cal 561 with serial number 19xxx in ref 168.004!!!
Since the model started in 1962 and the serial number dates it from around the same time, that part could be original.

https://www.omegawatches.com/en-us/watch-omega-constellation-calendar-st-168-0004

There is really no way to know unless you purchase an extract of the archives from Omega. It will cost a good portion of the watch’s value, and not give you a lot more information than what you have received here for free.
gatorcpa
 
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Since the model started in 1962 and the serial number dates it from around the same time, that part could be original.

https://www.omegawatches.com/en-us/watch-omega-constellation-calendar-st-168-0004

There is really no way to know unless you purchase an extract of the archives from Omega. It will cost a good portion of the watch’s value, and not give you a lot more information than what you have received here for free.
gatorcpa
Should I return it or keep ?
What you guys think?
I still worry about the bridge without stamp of chronometer .
Thanks
 
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I would return it unless you bought it cheap to harvest the parts.
gatorcpa