There are innumerable watches being his name in forgery. He made many improvements, including the parachute ca.1790, and the tourbillon in 1801, also many self-winding watches. He was the first to make lever escapement with lift partly on the pallets and partly on the teeth. The overcoil balance spring is known by his name. Draw was absent from early levers, but used after 1814.
Most important collections contain genuine and forged watches.
The late Sir David Salomons had a collection of 102 watches and 6 clocks by Breguet. British Museum, London , Guildhall Museum. British Science Museum, S. Kensington Striking cylinder watch and musical. The latter, of 1808, was the first made.