This ‘in-house’ movement begins life as a square plate of brass which is subsequently placed in a state of the art Computer Numerical Control (CNC) machine. This machine does not use lubricant, making it less harmful to the environment. The CNC machine mills the brass using a series of tools. These tools mill holes and cut shapes to incredibly small tolerances, expressed in microns (1 micron = 0.001mm). The programming of such machines necessitates much expertise and time. However, the resultant components are made to a level of precision which surpasses any handcrafted techniques. Having been machined, the part becomes an intricately shaped disc of brass, termed a ‘main plate’. This acts as the chassis of the movement.