Jaeger-LeCoultre Polaris Mariner Memovox

About This Watch

The Jaeger-LeCoultre Polaris Mariner Memovox is a direct spiritual successor to the legendary 1968 Memovox Polaris — the world's first dive watch with a mechanical alarm. That original model was designed so divers could set an alarm to remind them when their air supply was running low, a potentially life-saving complication. Today's Mariner Memovox carries that heritage forward with modern construction: 300 meters water resistance, a ceramic dive bezel, and the refined caliber 956 alarm movement. The alarm is set via the crown at two o'clock, rotating a triangle-tipped hand to the desired time. When triggered, the hammer strikes a gong on the caseback, producing a distinctive buzzing that is amplified on the wrist. The blue gradient dial references the ocean depths, while the bold trapezoidal markers provide excellent underwater visibility. Three crowns — for the alarm, time/date, and internal rotating bezel — give this watch a purposeful, instrument-like appearance. The Memovox alarm in a dive watch configuration is uniquely JLC — no other manufacturer offers anything comparable. This is a watch for the collector who wants mechanical ingenuity married to genuine sporting capability, from a brand that invented the complication over sixty years ago. It is, quite simply, irreplaceable.