Developed for the American market and designed in a massive 42 mm.case, it featured an internal revolving bezel as well as an alarm function and a date. Equipped with the Jaeger caliber K825 that revolutionised the watch world a few years earlier as the world's first automatic alarm watch, the Polaris offered divers reliability and endurance. The first generation was fitted with a dial with applied baton indexes and dauphine hands, while the second generation of 1968-70 had a dial with large luminous indexes. The total production of the Polaris model is believed to be fewer than 1714 units, manufactured between 1965 and 1970. While the second generation is much more common, the first series appears to have been produced in much lower numbers.