New acquisition.

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I have just acquired this small Omega and I am struggling to identify what I have. It sort of predates my knowledge and looks almost more antique than vintage. I'm guessing 1920s possible 30s? Any pointers would be gratefully received.
 
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From Dr Ranfft’s pink pages this looks to be a cal 220. 15j, subseconds and 23.4mm handwind all match up. Production from 1935 into the war years. From the position of the regulator it requires a service. If you tell us where you’re located you can get some recommendations for a watchmaker.
 
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From Dr Ranfft’s pink pages this looks to be a cal 220. 15j, subseconds and 23.4mm handwind all match up. Production from 1935 into the war years. From the position of the regulator it requires a service. If you tell us where you’re located you can get some recommendations for a watchmaker.
Thank-you. The fact I now know the calibre gives me something to go on. I won't be getting this one serviced as it's not something I would wear. I was fortunate to have it given to me.
 
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Not a 23.4. (the bridges design is different on the 23.4), but probably a 23.7. What size is the caliber inside?
Case is not original but a later non Omega replacement.
Hour hand is a replacement also. The crown is something like 25 years younger than the caliber.
 
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Not a 23.4. (the bridges design is different on the 23.4), but probably a 23.7. What size is the caliber inside?
Case is not original but a later non Omega replacement.
Hour hand is a replacement also. The crown is something like 25 years younger than the caliber.
That's really interesting. So it's a frankenwatch!!
 
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From Dr Ranfft’s pink pages this looks to be a cal 220

Sorry - no it is not.
Caliber is 23.7

edit - @Tire-comedon told you while I was writing... he is always a bit faster 😀
 
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Either way, I love the look of it.
It will go in the box marked " watches for daughter when she is 18 ( and interested in watches"
 
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Truly a design that's way ahead of it's time.
Doesn't look dated at all.