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Gaus

Eta 2834-2 behaves weird

Question

Hello there,

I have an Eta 2834-2 movement in a Louis Erard watch. Dial up it runs nice. But vertical (12 up) it runs far to fast. Any suggestions?

Gr. Hans

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Have you demagnetised the watch and all your tools you are using to repair it? Are you using the correct oil? Making sure, you use the right amount on the escarpment.  Never oil the pivots on the pallets. Make sure the hairspring is nice and clean.

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Have you looked at the oscillator?

Sound like out of round, poise wheel .

Check hairspring as well.

Close up top full view of the wheel and hairspring when runing ,side view of the oscillator helps a lot.

 

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Inadequate data.   

Graph?                        Show top and side view close up video/ pix of the oscillator.   

Staff end shake?    Check if HS fouls itself, sticky, unlevel or touches the wheel/ cock

 

 

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