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Screeching sound when winding a bumper automatic


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Hi guys, 

A bumper automatic I bought makes a screeching sound when I wind it. A little bit the same sound as a regular rotor automatic, but sharper and more metallic, if that makes sense. Have you come across something like this? 

Could the spring be rotating the wrong way inside the barrel, thereby making this sound? 

--

Thanks, 

Stian 

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I think OH put his finger on it, I had this once with an old watch from the bay and it was quite literally completely dried out inside. Service it and check the spring out.

Cheers,

Vic

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