When time is everything, you need to be able to count on a watch with the utmost precision, and that will look good. On the wrist of an orchestra conductor, a musician or an enthusiast, the Jazzmaster Maestro Auto Chrono always hits the mark. The H-21 is a powerful automatic chronograph movement with an enhanced 60-hour power reserve, making it perfect for the needs of the sportiest models. The H motif on the oscillating weight leaves no doubt about who made this movement.