GRAHAM-LONDON traces its origins to London clockmaker George Graham (1673-1751), who is responsible for many innovations in timekeeping. He invented the chronograph, the dead-beat cylinder escapement and the mercury pendulum to compensate for temperature differences. Additionally - he built the master clock for the Greenwich Royal Observatory, which defined time for much of the 18th century. GRAHAM-LONDON resurrected his name in 1995 and today is a privately owned Anglo-Swiss watch company which designs and builds its watches in its own La Chaux-de-Fonds production facilities in Switzerland.