Dial, case and movement signed, in good conditionDIAM: 42 mm THICKNESS: 17 mmNOTE: Launched in 1965, as a successor to the MEMOVOX DEEPSEA, the POLARIS was JAEGER LECOULTRE's response to the ever-increasing popularity of recreational scuba diving. 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 revolutionized the watch world a few years before as the world's first automatic alarm watch, the Polaris offered divers reliability and endurance. The first generation was fitted with a plain full back and a dial with applied baton indexes, the second generation of 1968-70 were drilled for better sound emission and 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. These watches come signed both as Jaeger-LeCoultre and LeCoultre, the latter being for the US market.