In perfect balance between tradition and innovation, the Jazzmaster Open Heart allows you to admire its precision Swiss automatic movement in action. Thanks to quality materials and a range of combinations of dial and strap, in this collection Hamilton shows the best of itself. Three-sphere movement with date and power reserve greater than 80 hours, the H-10 features elaborate colimaçon and pearly contrasting patterns for the American Classic models and clean surfaces for the pilot's watches.