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Day wheel advance problem

AdamC
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AdamC WRT Addict

AdamC

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Hello,

It's been a while since I've posted but I have an issue that's perplexed me! About ten months ago, I repaired and serviced a rare ETA 2832 movement with a day date calendar mechanism. The watch worked fine until recently when the day wheel advanced half way and then got stuck. Having had it back on the bench and done a partial strip-down, I have re-engaged the day wheel, which now turns freely through all days in the crown/stem corrector position (as does the date wheel when turning in the opposite direction) but when moving the hands forward through 24 hours, the date wheel advances but the day wheel will not. I have carefully examined the day jumper mechanism and note that as the calendar wheel rotates and the arm engages the teeth and rotates the date wheel, nothing seems to be engaging to move the day wheel forward. I have added a few photos which may help to identify the problem. I have annotated with a red arrow, the lever which I think is supposed to advance the day wheel but doesn't engage at the calendar wheel teeth (if indeed this is what it's supposed to do). Any ideas of what I may have missed here?

Thanks

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