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General Purpose Mechanical with Tritium (GPM) - 34mm


Color: Sage Green

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Product Description


Sage Green: WW194003SG-NGM Desert Tan: WW194003DT-NGM Black: WW194003BK-NGMIg

Case Size
34 mm

Strap Width
16 mm

The crystal of the new GPM is made from a 3mm thick sapphire ensuring the highest possible scratch resistance, legibility, and durability.

Water Resistance
This watch is water-resistant of 3 ATM (30 meters/100 feet), making sure that it will not yield to the elements

Automatic Self-Winding


Case Material
High-impact fiber shell, which does not compromise quality or durability while keeping the weight low.

Tritium Gas Tubes
Self-illuminating tritium gas tubes glow with no need to be charged by an external light source. Tritium tubes glow on their own without the need for charging by an external light source, and will not fade in brightness making it an ideal configuration for nighttime or low light operation.

Field Watch
Designed for general infantry. Features a lightweight high impact fiber shell case and sapphire crystal.

Included with the new General Purpose Mechanical is a one-piece nylon military strap which is made in accordance with MIL-S-46383B Type II and provides comfort and durability while remaining lightweight. Also available from Marathon are extra nylon straps in various colors to personalize your GPM.

Built to Government specifications for use by military personnel. Fulfills Nato Stock Numbers 6645-00-066-4279 and 6645-01-304-4308


24 Jewel NH35 self-winding mechanical movement. Submersibility: 3ATM

Movement Description
The new GPM uses a Japanese made “Dual Winding Movement” (DWM) and can be wound both by manually winding the crown or by use of the automatic self-winding rotor (transferred energy caused by the movement of the wrist). With our new watch winding system, the user will notice that there is a mechanical noise and the rotor can be felt oscillating; reassuring the user that the automatic winding system is performing as intended. Once fully wound the GPM will run for approximately 41 hours without the need to be wound again or can be worn to wind using the automatic self-winding rotor.

Overall assembly of the watch is performed in La Chaux de Fonds, Switzerland, combining the accuracy of a Marathon designed Japanese movement with reliability and Swiss craftsmanship to bring you a superb watch. The Marathon GPM is a watch that will provide you with years of accuracy, reliability, and enjoyment.

Marathon Watch Company

Marathon Watch Company

Brand History

With roots back to 1904, Marathon Watch Company is a well respected Canadian based company that produces all their watches in Switzerland and has developed a reputation for some of the best Military Spec watches on the market. Marathon watches are produced with meticulous precision and undergo strenuous testing to ensure consistent quality for every product that leaves their facility.


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