The Urwerk EMIC (Electro Mechanical Control) watch uses highly advanced electronics to monitor the movement system's performance to within 10 microseconds.
Timepieces worn on the wrist are often not ultra-accurate as movements, changes in wrist position, acceleration, temperature and pressure all contrive to impact the chronometer's working and alter its time reading. The Urwerk EMC watch monitors the timing rate of the movement and tells you by how much it needs to be adjusted.
This is made possible by the use of highly sophisticated technology and electronics.
The watch is priced at $120,000 in North America. If you want one of these, you'll want to move fast because there will only be 55 units available for sale.