Second is MEMS or UV-LIGA production technology. You see the end result here. It enables us to create very complex structures with great precision. Here you see that we could make these structures hollow and thus considerably lighten the escapement wheel and anchor. This alleviated inertia means less burden on the hairspring and its prolonged longevity. The production precision and the smoothness of the surface are other strengths of this production method. This also contributes to the longevity of the overall mechanism.