Modern Complications

High precision ‘transporters’ are used to control the variable length of the minute hands as they traverse the dial. One end of each transporter follows a cam  – calculated from 380 reference points – plotting the path of the minute indication, while the other controls the precise length of the minute hand.
The UR-202S is the world’s first watch with the winding rate regulated by fluid dynamics. As long ago as the 18th century, clock makers 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 The traditional rotating vanes of the past have been replaced by cutting-edge miniature twin turbines – miniature air compressors – which can be seen spinning on the back of the watch.see more Breitling falso and Patek Philippe