Marathon 41mm SSNAV-D Pilot's Quartz Arctic Tritium Type II WW194013SS-0503

The Marathon 41mm SSNAV-D Pilot’s Quartz Arctic Tritium Type II (ref. WW194013SS-0503) is a modern military navigation watch engineered for pilots, parachutists, and operational use in extreme environments. Based on Marathon’s original Steel Navigator developed with Kelly Air Force Base in 1986, the Arctic edition adds a high-visibility white dial designed to improve daytime legibility in bright and snow-covered conditions. The fully brushed 316L stainless steel case, asymmetrical crown-guard profile, and bi-directional 12-hour bezel give the watch a distinctly functional military aesthetic that feels purpose-built rather than styled for fashion.

Powered by the Swiss ETA F06.412 HeavyDrive-PreciDrive quartz movement, the SSNAV-D delivers exceptional accuracy of roughly ±10 seconds per year while remaining highly resistant to shock and altitude changes. The watch features tritium gas tube illumination on the hands and markers for constant low-light visibility, a sapphire crystal rated for high-altitude pressure resistance, a screw-down crown, and 100 meters of water resistance. Unlike many pilot watches that lean vintage or luxury-focused, the SSNAV-D Arctic is unapologetically utilitarian—lightweight, highly legible, and built around operational reliability first.

Reference: WW194013SS-0503

Bracelet: Nylon DEFSTAN Strap

Case: 41mm x 11mm Thickness x 48mm lug to lug - Parkerized Stainless Steel

Water Resistance: 100m (10ATM)

Lug Width: 20mm

Movement: ETA F06.412 HeavyDrive-PreciDrive Quartz

Dial: Arctic White - Tritium Gas Tubes

Bezel: Bi-Directional (12 Hour)

Functions: HMS, Date

Box and Papers: Inner/outer boxes, and warranty card

Crystal: Sapphire

Bracelet size: 7.75"

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Marathon Watch Company has built a reputation as one of the most trusted military watch brands in the world. Founded in 1939, Marathon specializes in Swiss-made tool watches designed specifically for government and military use.

Unlike many luxury watch brands, Marathon focuses on function over flash. The brand has supplied U.S. and Allied forces with durable, high-performance timepieces for decades. Their watches are known for tritium gas tube illumination, allowing constant visibility in low-light conditions—no charging required.

Popular models like the Marathon GSAR (Government Search and Rescue) and TSAR (Tritium Search and Rescue) are built to withstand extreme environments, making them a go-to choice for divers, pilots, and professionals.

Today, Marathon continues to produce military-issued watches, combining Swiss craftsmanship, rugged durability, and tactical design. If you're searching for a reliable tool watch with real military heritage, Marathon stands in a class of its own.