This product is used for demagnetizing your mechanical watches. Easy to operate, provided that you know demagnetizing principle. Sturdy and durable, this demagnetizer can have long service time The watch repair demagnetizer is used to demagnetize your mechanical watches and correct the time, keeping your watch function well. This watch demagnetize tool made with sturdy and durable plastic, for long service life. You do not need to repair your watch at shop, saving time and money for you. Lightweight and compact, very convenient to carry and storage.