Magneta Synchronous Dial Clock — Harris Horology

The most common reason clocks stop is the build-up of dust and dirt, and old oil and grease becoming too thick for the wheels to easily turn. You can clearly see a large amount of dust near the contacts – this is where the protective case has to be open to allow the wires into the movement. You can also see the state of the bearing for the seconds wheel – it’s filthy and it’s no wonder this movement wouldn’t work. In general synchronous clocks are incredibly reliable and run for many years with no attention. This actually works to their detriment as it means they can have gone decades without care and often wear themselves out badly.