The man
Abraham-Louis Breguet was born in 1747 in Neuchâtel, Switzerland; he moved to Paris as a teenager to apprentice in watchmaking, and established his own atelier on the Quai de l'Horloge in 1775. He served the French royal court (Louis XVI, Marie Antoinette) and survived the French Revolution by fleeing to Switzerland for several years before returning. By the early 1800s his Paris workshop was the most-prestigious watchmaking establishment in Europe; clients included Napoleon, the Russian Tsar, the British royal family, and major scientific institutions.
The inventions
Self-winding pocket watch (1780s, the 'perpétuelle' that wound from the wearer's gait). Parachute shock-absorber (1790s, a sprung balance pivot mounting that absorbed impact; the precursor to all modern shock systems). Tourbillon (patented 26 June 1801, the rotating-cage escapement). Breguet hairspring overcoil (1795, the curved end-section of the hairspring that improves isochronism). Natural escapement (alternative to the lever escapement; not commercially adopted but technically elegant). Sympathique clock (a mantel clock that automatically wound and synchronised an attached pocket watch).
The aesthetic legacy
Beyond mechanisms, Breguet established the design vocabulary still used today: guilloché dials (engine-turned engraved patterns), blued steel hands ('Breguet hands' with the open-crescent tip), Roman numerals with Arabic '12' on the dial, secret signature (engraving on the dial visible only at certain angles, used as anti-counterfeit since the 1810s). Modern Breguet, Patek, and high-end haute-horlogerie all draw from his stylistic conventions.
Modern Breguet
The brand Breguet still exists, owned by Swatch Group since 1999. Modern Breguet positions itself as the heritage tier of haute horlogerie; the Tradition reference visualises the Breguet 1790s movement architecture, the Classique line carries the historical aesthetic, and the Type XX/XXI chronograph carries the French Air Force military lineage. Retail starts CHF 15,000, runs to CHF 1M+ for grand complications. See /styles/tourbillon/.