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how to set certina 25-652 date wheel


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Hi All,

I am trying to set the day and date changer wheel on a 25-652 Certina. I can get the date to change no problem, it's the Day finger that is out of position and seems to jamb on the day wheel. I have tried several permutations but still happens. 

Cannot find and service notes for this Calibre. 

Any help greatly appreciated.

Cheers, Keith

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