UR 202

The UR-202 is the world’s first watch with the winding rate regulated by fluid dynamics. As long ago as the 18th century, clockmakers were using air friction to regulate the speed of chiming clocks, and their techniques evolved to become the preferred method of regulating the rate of chimes on minute- repeaters. With the UR-202, URWERK have taken the traditional idea of using air friction and refined it to control the rate of automatic winding. The traditional rotating vanes of the past have been replaced by cutting-edge miniature twin turbines - miniature air compressors The UR-202’s twin turbines are coupled with the winding rotor. According to the position of the selector lever, the turbines act as shock absorbers. In normal activity, they cushion sharp movements of the rotor. This reduces wear and increases the lifespan of the movement.