Bright snowfields, sunlit runways and hazy afternoons are where the Arctic dial proves itself. The Marathon Arctic SSNAV, reference WW194001SS-0501, pairs a crisp white sterile dial with the 41mm Steel Navigator case and an 11-inch ballistic nylon strap.

Marathon's Arctic dials exist for one reason: legibility when the light is harsh. Black hands and markers against white read instantly in glare, while tritium gas tubes on the hands and indices take over once the sun goes down, glowing continuously with no charging. The dial is sterile, free of any government or unit insignia, which gives the white face a remarkably clean look.

Underneath that face sits the ETA F06.412 PreciDrive, a thermocompensated Swiss quartz movement rated to within about ten seconds per year. That is accuracy you notice when you stop resetting your watch. The 316L stainless steel case measures 11mm thick, takes a screw-down crown and is rated to 10 ATM, while the bi-directional 12-hour bezel clicks through 90 positions for tracking a second time zone. It is a direct descendant of the Navigator Marathon developed with Kelly Air Force Base in 1986, and the steel version returned to the lineup in 2023 after decades away.

Arctic SSNAV WW194001SS-0501: Key Specifications

• Reference: WW194001SS-0501
• Case: 41mm 316L stainless steel, 11mm thick, 20mm lugs
• Movement: ETA F06.412 PreciDrive thermocompensated quartz
• Water resistance: 10 ATM, screw-down crown
• Crystal: sapphire
• Bezel: bi-directional 12-hour, 90 clicks
• Lume: tritium gas tubes
• Dial: Arctic white, sterile, no date
• Strap: 11" black ballistic nylon, one-piece

Clean, bright and exceptionally accurate, it is a Steel Navigator built for daylight.