The only son of the founder, Antoine-Louis Breguet, takes over the company in 1824. Having been immersed in watchmaking since his earliest childhood, he pursues the work of his famous father. It is his son, Louis-Clément, who breathes a new dynamism into Breguet, understanding that watchmaking is from that point on spread through all social classes. He decides to extend his activities by diversifying, particularly in physic instruments.