Has your clock been moved recently.
My wall clock keeps stopping.
Dried oil and debris can clog and stop the clock mechanism.
If dried oil is visible gently brush it away.
Put it back on the wall and the pendulum stops after a few minutes it just swings slower and slower until it stops.
Pendulum arm about 20 long.
Not all mechanical mantel clocks have pendulums.
Four common reasons why a mechanical mantel clock stops.
But don t worry it s not terminal and can be cured.
If it s badly out of beat it will stop within a few minutes.
A clock that is out of beat is likely to stop because the pendulum is not receiving the optimum impulses to keep it swinging.
Gently slid arm off the small mechanism with a flat spring.
Dabbing a few drops of clean oil on the area then restarting the pendulum should get the clock running again.
The clock tilts forward at top due to hook on wall have packed a bit of folded tissue under bottom edge to sit it more perpendicular to the wall.
Clock was working fine took it off wall and removed pendulum to paint the wall.
It s usually due to the cheap mechanism at the back which soon becomes loose so that the hands of the clock stick on either the glass or the faceplate.
Brushing the mechanical works with a soft brush such as a paint brush should dislodge any dust or dirt.
It s probably quite an easy job they.