second hand not moving

[cnovel]

vintage datejust ,around 55 years old ,,second hand uit moving ,but it still keeps perfect time ,,,any ideas ?

thank you

[Tools]

Could be loose on the post, but more likely the gears to drive the center-seconds is broken.

A watchmaker should be consulted to know for sure.

[R.W.T.]

Originally Posted by cnovel

vintage datejust ,around 55 years old ,,second hand uit moving ,but it still keeps perfect time ,,,any ideas ?

thank you

The independent drive wheel on the 3rd wheel post has likely come off or is so loose on the post it is not turning the sweep pinion. Simple fix more than likely.