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Would you oil the stem of minute wheel of ETA 2824?


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I found that the tech sheet of 2824 did not suggest watchmakers to oil the minute wheel stem (Please point out if I'm careless and get the sheet wrong) but I've seem someone did that before. Personally I would like to oil the shoulder between the pivot and the stem because I guess that's where have a considerable amount of friction. So what would you do to achieve the best performance?

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Pivot is to rotate in a hole or jewel, wherever two parts rub oil is needed, seconds arbour isn't suppose to rub on anything, it stops the works if it dose.

A coat of epilame protects against rust and if I understand nickelsilver right he coats all metal parts of the movement.

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    • I loved his explanation of a teardown 😅
    • I also see a bit of danger for the wheel, at least you have to keep away from it and may get a too thick rest ring. My rest rings are about 0.05 mm. Better way would be a grinding wheel touching the staff with its circumference. Frank
    • Not easy to find this one everywhere,  so it depends where you are located. Joining it back together might be possible, i have silver soldered mild steel before even with traditional plumbers lead and its a pretty strong joint, but bere in mind this is only 1mm diameter.  The join would need to be very accurate,  it not something i have heard of anyone trying before. The part no 401 is the swiss code number and relates to watch winding stems in general
    • Thanks everyone for your helpful replies. I think between us we’ve worked out what’s going on. Next job is to have a proper look at this great wheel assembly, see if I can remove the clip and the friction fit pinion, give the bits a good clean, then put it back together with a bit of blue grease. I’ll also get the pallet fork under the microscope to see if it’s ok or been damaged. 
    • The cannon pinion (be it conventional style or what you see in this movement) should slip on its arbour so the hands can be set independently without affecting the gear train.  If there is too much friction between the cannon pinion and the second wheel, turning the hands to set them backwards can sometimes force the escape wheel teeth to overrun the pallet stones, creating the behaviour you describe. The train is running in reverse when this happens.  This can often chip the pallet stones. I’d say at least half of the watches I’ve inspected with very tight cannon pinions had chipped pallet stones. Hopefully this isn’t the case with your watch.  I’m not familiar with this movement but you need to get the friction in the cannon pinion adjusted correctly.  Hope this helps, Mark
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