The posterity of Abraham-Louis Breguet loses more and more of its interest in watchmaking in favor of other sectors like electricity or, later on, aviation. Louis-Clément, representing the third generation, sells the watchmaking branch in 1870 to the head of the workshop, Edward Brown. The Brown family, aware of the historical importance of Breguet and of the patrimony it is representing, will lead the House for the next century.
Sir Winston Churchill was lifelong a patron of Breguet’s. He would sometimes call as a buyer, as in 1928, sometimes as a customer, bringing in for servicing the watch he wore all his life, his Breguet no 765, an exceptional chronograph with minute repeater and flyback seconds hand purchased in 1890 by the duke of Marlborough.