While watches undergo all sorts of tests in the workshops to prove their endurance and reliability, there’s no better way to put them through their paces than in real life. And Seiko’s reputation for precision is well earned, as over the decades its timepieces have guided adventurers and researchers on their expeditions to some of the most extreme destinations on Earth. 

Three new additions to its Prospex collection take inspiration from such models that accompanied intrepid individuals as they explored the Arctic and Antarctic. Each comes equipped with the automatic Caliber 6R35, delivering a considerable 70-hour power reserve. Bolstering its adventure-ready credentials is the water-resistance of 200m, and the tough case finished with a super-hard coating. Taking into account optimal legibility whatever the conditions, the hands and indexes are coated with LumiBrite, while the sapphire crystal features an anti-reflective coating on the inner surface for clarity from every angle. 

As with many of Seiko’s creations, the watchmaker has looked to nature for inspiration. The dials each take their hues from shades of glacial ice, while the timepieces also pay tribute to some of the most notable examples from the brand’s past. 

A deep-blue version nods to the first Seiko diver’s watch from 1965, relied upon by members of the Japanese Antarctic Research Expedition from 1966 to 1969. Meanwhile, a lighter-blue option recreates another landmark timepiece, a 1968 diver’s watch that was the first from Seiko to offer 300m water resistance. 

Finishing the trio is a sleek model that pairs a crisp white dial with blue bezel, the distinctive shape of its case echoing that of the watch worn by Japanese adventurer Naomi Uemura as he completed a 12,500km solo dog-sled run from Greenland to Alaska. 

While these legendary explorers shaped how we examine and protect these precious natural environments, Seiko is continuing this tradition as these three watches join its Save the Ocean series, in which proceeds are donated to chosen marine charities. 

£1,110 – £1,200, seikowatches.com