Jaeger-LeCoultre’s expertise in alarm watches doesn’t need an introduction as the brand has a long tradition in manufacturing such wristwatches. Their famed “Memovox” (voice of memory) model was introduced to the market in 1950, however in an era where sports diving was gaining more and more popularity the brand decided to go one step beyond and create an oversized, automatic waterproof divers' wristwatch with alarm. In 1959 the Momovox Polaris was born, today one of the most coveted and desirable diving watches from that period.

Jaeger-LeCoultre’s goal was to offer both visual (inner bezel) and auditory (alarm) timers for the dive. To do so the firm created a patented case back, which optimized the alarm’s sound transmission underwater. The outer case, with its 16 holes, allowed for the alarm tone to be heard, while the inner case sealed and protected the movement. The watch featured three crowns, each with a cross hatch pattern: the first for time setting, the second for the inner bezel for dive timing, and the third to rotate the inner disc with arrow to set the alarm.

The Polaris was made in 1714 examples, and in 2009, Jaeger-LeCoultre released a modern version called "Tribute to Polaris" in recognition of the growing popularity of the original vintage model.
The present model was made for the European market as indicated with the full Jaeger-LeCoultre brand name on the dial whereas the simplified “LeCoultre” brand was used on dials of models intended for the American market.

The dial of the present model is turning a pleasing and charismatic “tropical” brown perfectly complemented by the cream indexes and hands. In overall appealing condition this Memovox Polaris is accompanied with a fitted box and open guarantee papers.