One of the hottest new independent releases of the last several years, the UR-100 not only has the classic URWERK design taken to another level, but it has one of the coolest astronomical complications ever. In addition to the time, the next window shows the number of kilometers the Earth has rotated at the equator over a 20-minute period, up to a total of 555 kilometers. And the other window shows how many kilometers the Earth has traveled along its orbit, for a total of 35,740 kilometers in every 20-minute period.
This is the Electrum version which immediately sold out. Electrum is a gold/silver/palladium alloy that I have never seen used in a watch before. Check out my video review here