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, the mercury pendulum to compensate for temperature differences. He also built the master clock for Greenwich Royal Observatory which defined time for most of the 18th century. GRAHAM-LONDON was resurrected in 1995 and is today a privately owned Anglo-Swiss watch company which design and builds its own watches in its La Chaux-de-Fonds production ...