Which inventor is known for creating the balance spring?

The balance spring, a crucial component in the timekeeping mechanism of mechanical watches, was invented by Christiaan Huygens in the 17th century. This invention significantly improved the accuracy of timepieces by allowing for more precise regulation of the oscillation of the balance wheel. Before Huygens introduced the balance spring, clocks were often less accurate, affected by various external factors.

Huygens' design utilized a spring that worked in conjunction with the balance wheel, enabling the wheel to oscillate at a consistent frequency, thereby enhancing the overall reliability and precision of timekeeping instruments. This innovation laid the foundation for many future advancements in horology, making Huygens' contribution foundational to the development of modern mechanical watches. Other individuals mentioned made important contributions to horology but did not specifically create the balance spring.