Marathon 36mm SSGPM Standard-Issue Officer's Mechanical Tritium Type II WW194003SS-0108

Marathon's Officer's Watch features a case diameter of 36mm, a thickness of 11mm, and 16mm lug width, making it perfect size for everyday wear.

Commonly known as the Officer’s Field Watch Mechanical (OFM) or Stainless Steel General Purpose Mechanical (GPM-SS).

Powered by a Swiss-made Sellita SW210-1 mechanical movement with 18 jewels, ensuring accurate timekeeping and longevity. The watch features two scale quantities with a range of 1-12 and 13-24, making it easy to read both standard and military time.

The Officer's Watch is also equipped with luminous features, including Tritium Gas Tubes, which allow you to read the time in low-light conditions. The crystal material is made of Sapphire, providing a scratch-resistant surface for the watch face.

The crown type is pressure-sealed, ensuring that the watch is water-resistant to a depth of 5 ATM. The case material is constructed from 316L Stainless Steel with a Parkerized finish, giving the watch a sleek and durable look.

Reference: WW194003SS-0108

Bracelet: Black Nylon DEFSTAN

Case: 36mm x 11mm Thickness x 44mm lug to lug - Parkerized Stainless Steel

Submersibility: 5ATM

Lug Width: 16mm

Movement: Sellita SW210-1 with Incabloc Shock Absorber - 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.