Underwater, accomplished and amateur divers alike need to rely on equipment that is impeccable both in terms of precision and safety. While previous models of the Polaris automatic only came with 100m water resistance, the dive styled watch is now a dive ready watch with the upgraded 300m water resistance. The new Jaeger-LeCoultre Polaris Mariner Memovox is also equipped with this update in an attractive blue sunburst dial.