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Posted (edited)

Hi all,

I've got a FC watch which used a SW300.1 movement to repair. The rotor is stuck/stiff and its hard to rotate. I've dissemble self-winding mechanism and oscilating and ball bearing from the movement. As you can see in the video clip, the transfer wheel seems to be stuck when I rotate the rotor. Please give me your suggestion for this case.

Should I buy a new ball bearing?

Thanks

 

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Edited by hokavan
Posted

If you grip the ball bearing plate between your finger does it rotate freely or stick.

Mick

Posted

Yep something in your self winding is binding did you dismantle it and put it back together.

 

Posted

I haven't oiled any point. The screw on the lower bridge is tighten with adequate force. Maybe I'll dismantle the transfer and reduction wheels

Sent from my iPad using Tapatalk

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