1Replaceable: Watch movement accessory is an excellent repairing tool to replace for an old or broken mechanical watch movement to extend the use of the watch. 2Multi Function: Perfect for repairing, replacing or manufacturing watches. You can easily set or adjust the time by using the dial on the back of the device. 3Easy To Use: Quartz watch movement adopts exquisite craftsmanship technology, which is simple and convenient installation and reliable use. 4Highly Accurate Design: Professional watch repairing movement is with high accuracy and reasonable size, which is compatible with 1L40 watch. 5Plastic: Mechanical watch movement part is made with durable material, lightweight, portable, resistant to drop and scratch and have a long service life.