Examine the motions of a watch balance wheel as it swings around an arc.
What does a Balance Wheel Motion Inspector do?
Examines motion of watch balance wheel to verify that wheel swings around an arc of at least 180 degrees, using holding fixture and loupe: Winds and positions watch in holding fixture. Examines swing of wheel utilizing balance arm as point of reference, to verify that swing is at least 180 degrees of arc, using loupe. Disassembles faulty balance wheel movements for repair.