Omega 1250 / 1260 movement

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GeneveVintage

·Jan 26, 2025

Hello everyone,

Just wanted to check if anyone knows if I could use the 1260 (day/date) movement interchangably with the 1205 (date)

Basically the 1250 in a constellation is not running, and I had opportunity to purchase a 1260 at a resonable price, would the day wheel be an issue?

Any help appreciated.

 

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ketiljo

·Jan 26, 2025

1250 and 1260 date wheels are different and not interchangeable. The best is to get hold of a metal datewheel. You can find them on eBay from time to time

 

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rendo

·Jan 26, 2025

Just to add, this is the date wheel for ESA 9162 (Omega 1250) remanufactured in steel:

https://www.ebay.com/itm/276655162339

 

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GeneveVintage

·Jan 27, 2025

Thanks i will absolutely buy a few of those wheels, i guess rephrase my question. could i just put a 1250 watch face on a 1260 movement? or will the date not line up? or will there be any other problems?

 

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ketiljo

·Jan 27, 2025

The date disk is in the same position so it will line up just fine:

But, the 1260 / 9164 is 0.7 mm thicker on the dial side of the stem so it won't fit the case. The oscillator module is the same and interchangeble. So a quick fix is to just transplant the module.

Edited: Jan 27, 2025

 

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GeneveVintage

·Jan 27, 2025

brilliant! thank you for sharing your knowledge on this, i just need to find the right watch maker to do it, i am a amateur and from what i heard these movements are highly fragile to work on