Polaris Memovox by Jaeger LeCoultre

This year marks the 50th anniversary of the original Memovox Polaris watch that was created in 1968. The 1,000-piece limited edition features, what it terms as,“an iconic triangle”: the centre of the dial has a rotating disc with a small triangle, which is the alarm. On pulling and turning the crown located at the second hour, the disk rotates to align the triangle with the desired time. The case back is engraved with a diving helmet, replicating the symbol etched on the original model; and a “50th anniversary” inscription. jaeger-lecoultre.com

Strap: Black rubber

Case diameter: 42mm Water resistance: 200 metres