Among The list of chronograph’s earliest employs was timing horse races, so naturally, the complication evolved when horses built way for horsepower. The term “chronometer” took on a slightly broader which means as private, transportable timekeeping, as represented by pocket watches and later by wristwatches, grew to become mainstream. Watchmakers https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/