6497-1 Looks OK on the watch timer but runs slow
Hi
For some reason my 6497-1 checks out fine on the watch timer but doesn't keep time. Could this have something to do with the cannon pinion clutch mechanism?
It seems to be setting too easily - it used to be harder to move the hands - hence my suspicion of the clutch mechanism.
Thank you for your help.
Dave
@clockboy is exactly right in these cannon pinion tightening methods. You must remove the center wheel before you tighten, and use a broaching pin or some suitable object to insert into the cannon pinion to help prevent crushing it.
JC