Marathon 41mm Pilot's Auto SSNAV-D Arctic Tritium Type II WW194030SS-0530

The Marathon 41mm Pilot's Automatic SSNAV-D Arctic Tritium Type II Ref. WW194030SS-0530 is a rugged Swiss-made military-inspired timepiece that combines purpose-built functionality with modern mechanical watchmaking. Drawing inspiration from Marathon's original Steel Navigator, developed in partnership with Kelly Air Force Base in 1986, this modern interpretation is engineered for pilots, military professionals, and everyday adventurers. Housed in a robust 41mm case constructed from 316L stainless steel, the watch measures just 11.5mm thick and features a distinctive Arctic white dial designed for exceptional daytime legibility. Bold black Arabic numerals, a dual 12- and 24-hour military time scale, and a discreet date window positioned at 4:30 reinforce its utilitarian character. Self-illuminating tritium gas tubes on the hands, hour markers, and bezel pip provide continuous visibility in low-light conditions without requiring an external light source. A scratch-resistant sapphire crystal, screw-down crown, and bidirectional 90-click rotating bezel with a 12-hour GMT scale complete its highly functional design.

Powering the Marathon SSNAV-D Arctic is the Swiss-made Sellita SW200-1 automatic movement, featuring 26 jewels, an Incabloc shock protection system, and an approximately 41-hour power reserve. Designed to withstand demanding environments, the watch offers 100 meters of water resistance while maintaining a comfortable 48mm lug-to-lug measurement. Its stainless steel construction and refined case architecture provide exceptional durability without sacrificing everyday wearability. The watch is paired with Marathon's black three-piece rubber strap kit, featuring military-grade construction and adjustable components for a secure, comfortable fit. Unlike traditional quartz-powered military field watches, the SSNAV-D Automatic incorporates the mechanical craftsmanship of a self-winding movement while preserving the reliability and straightforward functionality expected from a professional instrument. With its striking Arctic white dial, continuous tritium illumination, and authentic military heritage, the Marathon SSNAV-D Arctic WW194030SS-0530 is an outstanding choice for collectors seeking a capable, distinctive, and historically inspired Swiss tool watch.

Reference: WW194030SS-0530

Bracelet: 3 Piece Rubber Strap Kit

Case: 41mm x 11.5mm Thickness x 48mm lug to lug - Parkerized Stainless Steel

Water Resistance: 100m (10ATM)

Lug Width: 20mm

Movement: Sellita SW200-1 with Incabloc Shock Absorber - Automatic

Dial: White Arctic Dial - 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"

New

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.