Jaeger-LeCoultre Polaris Mariner draws on this diving watch heritage, presenting two new models that unite fully ISO 6425-compliant specifications with the sporty aesthetic of the contemporary Jaeger-LeCoultre Polaris collection: the Jaeger-LeCoultre Polaris Mariner Memovox and the Jaeger-LeCoultre Polaris Mariner Date. The 42mm cases feature the key design codes of the Jaeger-LeCoultre Polaris cases with their taut lines, glass-box crystals, and dynamic mix of brushed and polished surfaces. In keeping with their purpose as a high-performance diving watches, the Jaeger-LeCoultre Polaris Mariner cases are water-resistant to 300 metres (30 bar).