Abraham-Louis Breguet © mhe
Swiss clockmaker, established in Paris.
Stayed in Switzerland and met Abraham Louis Perrelet.
Master Clockmaker in 1784.
Member of the Bureau des Longitudes in 1814.
Watchmaker to the Royal Navy In 1815, Member of the Academy of Sciences in 1816, Chevalier of the Legion of Honour in 1819.
Apart from the very start of his career, Abraham-Louis Breguet almost always used Lépine calibres, which he transformed.
1775 to 1780
Improved the automatic rotor or so-called perpetual watch.
Invented the gong-spring for repetition watches.
Design of apple-shaped so-called "Breguet" hands and Arabic numerals called "Breguet numerals".
Adoption and improvement of the anchor escapement. Abraham-Louis Breguet used it in its definitive form 1814 (this form is still in use).
Invented the "pare-chute" anti-shock device.
Development of a small clock showing the time equation.
Invention of a retrograde display mechanism.
Invented the Breguet spiral (flat spiral).
Invention of the sympathetic pendulum which resets a special clock once the latter has been coupled with the pendulum mechanism.
Invented the tact watch.
Patent for the tourbillon escapement, developed circa 1795.
Development of the "encreur" chronograph, in partnership with Frédérick Louis Fatton. Generally speaking, Abraham-Louis Breguet was distinguished for the first attention paid to aesthetic watch design.