Tested under the most rigorous conditions by big-wave surfer, free diver and spear-fisher Mr Mark Healey, Bremont's 'Waterman' watch is built to withstand what he calls "the most extreme ocean environments on the planet". Limited to just 300 pieces, it's engineered with a Swiss-made GMT chronometer movement based on the ever-reliable ETA 2892, in turn encased in hardened stainless steel and set with a uni-directional bezel for accurate timing. The helium release valve, anti-shock vibration mount and additional Kevlar strap make it perfect activity. What’s more, part of the proceeds will benefit Sustainable Coastlines Hawaii.

We offer a two-year warranty for all working parts and manufacturing faults for luxury watches. For more information, contact one of our experts by emailing watches@mrporter.com