Who is originally credited with the invention of the chronograph?

Nicolas Mathieu Rieussec is originally credited with the invention of the chronograph, which he developed in the early 19th century. In 1821, Rieussec created a device that could measure time intervals with great precision. His invention involved a mechanism that recorded elapsed time using a pen and a rotating dial, which laid the groundwork for modern chronographs. This innovation was particularly significant because it allowed for the accurate measurement of time for events such as horse races, which were popular during that era.

While other figures in horological history contributed to the development of timing devices, Rieussec is recognized for creating one of the first practical chronographs, making his contribution pivotal to the evolution of timekeeping in watches.