Expert: Melvin Mills - 11/1/2009

Question
Hi Melvin,

I have been having trouble with getting the above mentioned watch to run properly. The problem is that the balance wheel moves freely, The staff, roller jewel, and hairspring all seem to be fine. The balance wheel seems to be 'centered and not touching the watch. The fork has power and seems to be 'poised' correctly, but I suspect this may be where the problem lies. The balance goes back and forth a few times, and just before it sets itself into a proper rhythm, the balance seems to get 'stuck' at about the bottom of the swing to the left. About '7' o'clock.

The model 987S has no poising screws, just a 'split' at both ends of the pallet to open or close.

What can you suggest to fix this watch? Thank you and Regards, Ken.

Answer
Ken,

Don't allow yourself to become frustrated and overly discouraged.  If you need to take a break from this watch, put it aside and come back when you are calm.  It happens to everyone.

Now, think of me as  a friend and offering constructive critisism.  

The balance is not moving freely. At least not when you add in all the other components.

So, you need to take the balance apart again and start over.  Re-check everything.

Check the staff really closely.  Make sure there is no dirt or debris on it and the ends are perfect.  If you have any doubt, change it.

Put the balance in the movement withouth  the hairspring.  You want to make sure the balance can spin freely in all positiions.  If that works, go to the next step until you have the entire balance back together.  

Contact me if you don't find it.

Kind regards,

Melvin