SWISS Watchmakers Benchtop Demagnetizer. Keep your tools demagnetized and prevent magnetizing a mechanical movement. High quality construction - manufactured in switzerland. Compact and easy to use! This is a fantastic addition to any watchmakers bench and also a must have for serious watch collectors and hobbyists. Magnetism can disrupt the regulation of mechanical watches. Keeping your tools demagnetized is a great way to avoid introducing magnetic fields into a movement that you are working on.