Free shipping on orders over $100 in the US (over $150 in Canada)
A mil-spec field watch with tritium tubes - INCLUDES A STRAP COMPASS
General Purpose Mechanical
Date
Case Color
Email Me When Available
Item no longer available
Add To Cart
$324.00
Finish selections for price & availability

Free shipping on orders over $100 in the US
Marathon
General Purpose Mechanical
A mil-spec field watch with tritium tubes - INCLUDES A STRAP COMPASS
Date
Case Color
Email Me When Available
Item no longer available
Add To Cart
$324.00
Finish selections for price & availability

Free shipping on orders over $100 in the US

Designed in Canada and manufactured in Switzerland, Marathon watches are designed to meet some of the toughest MIL SPEC standards out there. The GPM (General Purpose Mechanical) watch is made for infantry units to withstand anything they may encounter in the field. The standard that defined the specs of the General Purpose Mechanical watch was born out of military necessity, but it’s just as useful as a civilian. The GPM is an all-purpose watch with a reliable Japanese automatic movement, housed in a lightweight and high-impact composite case and some tough military vibes that’ll be right at home in your collection.

Measuring in at 34mm wide by 11mm thick, the composite case is light on the wrist. It stays strapped on thanks to the thin 16mm nylon strap that coordinates with the case color. The dial is what you’d expect from a field watch — clean and legible with a 12- and 24-hour scale. Bold white hands really pop out from the matte black dial. To take legibility to the next level, the hour and minute hands / hour markers on the dial are adorned with tritium gas tubes that constantly glow in the dark without needing exposure to light like standard lume would. The dial is protected by a scratch-resistant sapphire crystal for extra durability. 

Inside the GPM, you’ll find Seiko’s NH35 - a reliable Japanese-made “Dual Winding Movement” that can be wound both manually via the crown, or automatically via the internal rotor. It’s good for 41 hours of power between windings and features a beat rate of 21,600bph for a smooth seconds sweep. 24 jewels inside the movement keep everything running smoothly.

  • Case: Black High-Impact Fibre
  • Dial: Matte Black
  • Lume: Tritium Gas Tubes
  • Movement: Seiko NH35
  • Winding: Automatic
  • Lens: 3mm Flat Sapphire
  • Strap: Black Nylon
  • Water Res.: 30M
  • Diameter: 34mm
  • Length: 40.8mm
  • Thickness: 11mm
  • Lug Width: 16mm
  • Swiss-made
  • MIL-SPEC: MIL-PRF-46374G
  • Case: Sage Green High-Impact Fibre
  • Dial: Matte Black
  • Lume: Tritium Gas Tubes
  • Movement: Seiko NH35
  • Winding: Automatic
  • Lens: 3mm Flat Sapphire
  • Strap: Brown Nylon
  • Water Res.: 30M
  • Diameter: 34mm
  • Length: 40.8mm
  • Thickness: 11mm
  • Lug Width: 16mm
  • Swiss-made
  • MIL-SPEC: MIL-PRF-46374G
  • Case: Desert Tan High-Impact Fibre
  • Dial: Matte Black
  • Lume: Tritium Gas Tubes
  • Movement: Seiko NH35
  • Winding: Automatic
  • Lens: 3mm Flat Sapphire
  • Strap: Tan Nylon
  • Water Res.: 30M
  • Diameter: 34mm
  • Length: 40.8mm
  • Thickness: 11mm
  • Lug Width: 16mm
  • Swiss-made
  • MIL-SPEC: MIL-PRF-46374G
About Marathon

Founded in 1939, Marathon Watches of Canada is a family owned company, currently in its fourth generation. Known for their military issued watches, dating back to 1941, today’s Marathon is still a major supplier of mil-spec timepieces to the US Armed forces. Designed in Canada, but made in Switzerland at Marathon’s own factory in La Chaux de Fonds, their field, pilot, and dive watches are made to the exacting standards of the military.