The World’s First Chronograph WristwatchJust a decade after the turn of the century, companies began to experiment with turning pocket watches into wrist chronographs. Soon, they were in high demand for military forces, aviators, and automobile racers.
In 1913, Longines built a monopusher chronograph using the company’s 13.33Z caliber movement. Accurate to a fifth of a second, it spawned numerous chronographs from competitors over the next decade.
Πηγή: Crown & Caliber blog
