How a Pendulum clock Works
All of our battery operated pendulum movements have several things in common. They are all operated by an electro magnet that gives a pulse to a magnet on the pendulum arm, which gives the pendulum a very natural swinging motion. They also operate independently of the actual clock movement and have no effect on it. In most cases, when the battery on one of our pendulum movements gets low, the pendulum will stop swinging so that the movement can operate a bit longer.
Two factors must always be considered when using battery operated quartz pendulum movements. The first is the weight of the actual pendulum. Our pendulums are specifically designed to work with battery-operated movements. If you were to substitute a pendulum from an old mechanical movement, you would probably find that the pendulum is to heavy to be operated by a battery operated movement. The second is the operating position of the movement. The movement must level, or perpendicular to the ground. If the movement is not properly leveled, then the pendulum may not operate properly, or at all.