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ETA 2784 rotor bearing

Flinty

By Flinty
in Watch Repairs Help & Advice

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Flinty New Member

Flinty

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Im searching for a replacement rotor bearing for my vintage Tudor prince 9050.

I am pretty certain that the movement in this watch is an ETA 2784 (If someone knows otherwise please let me know :-) )

The rotor is noisy, and after close inspection and a tightening of the rotor screw, I am confident that the rotor bearings are worn, causing a wobbly rotor.

My problem; I am really struggling to find a replacement bearing.

Does anyone know where to find such a part? Or if there is an alternative?

Thank you very much 

 

 

 

 

 

Flinty New Member

Flinty

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Thanks for the advice Rodart and thanks for the welcome!

I have already tried a replacement rotor bearing specified for an ETA 2824-2, but unfortunately the gear was too small to mate with the mechanism of the movement which winds the watch; the push fit diameter of the part was correct but the gear diameter was not.

Thanks for the link, Its strange I have noticed that this rotor from Yukiwatch is specified to fit both ETA 2824 and the ETA 2784... So something does not add up based on my prior findings. I will contact Yukiwatch directly and ask for the dimensions.

Thanks again!

Flinty New Member

Flinty

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Hi Rogart,

So today I found out that the rotor bearing for the ETA 2824-2 is in fact exactly the same as required for the ETA 2784!

It appears that my initial visual judgement of the size was incorrect. When I measured both with calipers, they both measure 5.55mm in diameter.

I have fitted the part to my watch and its working perfectly and the noise has gone away!

Thank you so much for your help, its much appreciated.

 

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