De Bethune DB2030

Revolutionary monopusher chronograph caliber featuring De Bethune's patented Absolute Clutch System. The chronograph displays 24-hour, 60-minute, and 60-second counters, all co-axially mounted centrally. The Absolute Clutch System combines advantages of both horizontal and vertical clutch mechanisms while eliminating their faults, reducing friction when running and eliminating start delay. Three different clutch types controlled by three column-wheels govern the semi-independent chronograph counters. High frequency of 36,000 vph (5Hz) like the Zenith El Primero. Self-regulating twin barrels provide 5-day power reserve. Total of 384 individual parts with hand-polished steel bridges. Featured in the DB28/DB29 Maxichrono collection, winner of GPHG Grand Prix.