The Jazzmaster Auto Chrono is a watch that easily adapts to the rhythms of modern living while still dancing to the beat of its own drum. For those who love tradition but appreciate innovation, the H-21 with its 60 hours of power reserve is housed in a case of gentle curves and clean lines.
The H-21 is a powerful automatic chronograph movement featuring an extended 60-hour power reserve, making it perfect for the demands of the sportiest of models. With an H pattern design on the oscillating bridge, there’s no mistaking who made this movement.
Hamilton watches are innovative, iconic and known for American Spirit and Swiss Precision. We are known for the highest performance standards and Swiss made movements. We create automatic, mechanical and quartz watches, men’s and women’s watches. With a reputation for craftsmanship and strong movie, military and aviation heritage, our watches include the Khaki Field, Khaki Aviation, Khaki Navy, Ventura and Jazzmaster