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Well, I will tell you what I do when I find an escape wheel that has teeth that aren’t the same height – worn or damaged, or just out of center.
I get a small file or something rigid and flat and wrap a piece of fine grade sanding paper around it (400 or 500).
Then – with escape wheel assembled in movement plates – I hold this wrapped file just near the edge of the wheel and make the wheel turn fast back and forth. As I turn the wheel I get the file slowly closer, holding firmly till it touches the teeth tips. This way I can ‘turn’ the wheel to a perfect circle, all teeth with exactly same height.
Unless the difference between the higher and lower teeth heights is too big, this method results in a good correction.