Marathon 34mm Sage Green GPM Standard-Issue Field Mechanical Tritium Type II WW194003SG-0106

The Marathon 34mm Sage Green GPM Standard-Issue Field Mechanical Tritium Type II (ref. WW194003SG-0106) is a modern military field watch rooted directly in the heritage of the original General Purpose watches issued to Allied forces during the 20th century. Built to MIL-PRF-46374G Type II Class 4 standards, the GPM keeps the formula intentionally simple: compact proportions, ultra-legible dial layout, lightweight construction, and dependable mechanical reliability. The matte black Type II dial paired with the distinctive sage green high-impact fibreshell case gives the watch a subtle tactical character that feels authentically military rather than fashion-driven.

Powered by the Seiko NH35 dual-wind mechanical movement, the GPM can be wound manually or automatically through its self-winding rotor, delivering approximately 41 hours of power reserve. The watch features self-illuminating tritium gas tubes on the hands and hour markers for constant low-light visibility, a sapphire crystal for scratch resistance, and a lightweight DEFSTAN nylon strap built for field use. Its compact 34mm case size stays true to historical military-watch proportions, making it exceptionally wearable while preserving the authentic feel of vintage-issued equipment.

Reference: WW194003SG-0106

Bracelet: Green Nylon DEFSTAN

Case: 34mm x 12.5mm Thickness x 41mm lug to lug - High-Impact Composite Fibreshell

Submersibility: 3ATM

Lug Width: 16mm

Movement: Seiko NH35A - Automatic

Dial: Black Dial - Tritium Gas Tubes

Functions: HMS

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.