Strange noise in my 1570

[Mr. Doug]

Can anyone tell me what I need to do here? I took a video of the movement, moving relatively smoothly...but making a godawful sound.

[ame="http://www.youtube.com/watch?v=p54eEuNTU6w"]Rolex 1570 Movement Noise - YouTube[/ame]

 

[SUMIKITO]

Sounds like your rotor or your rotor bearing is causing that noise. Remove your rotor and check inside the sides for signs of rubbing. Also check your rotor bearing with a strong loupe. Have heard that same sound before but on an ETA mvt. That one was used by the owner while playing basketball. Go figure. Hope you find the cause.....Best regards

 

[Mr. Doug]

I remove it by taking off those 3 blue screws? I didn't want to assume anything.