Sage green has a softer, more vintage tone than standard olive drab, and it is the color that makes reference WW194003SG-0003 stand out in the Marathon General Purpose Mechanical lineup. Add a dial that reads "U.S. Government," and you have a 34mm automatic with both personality and pedigree.

The SG code in the reference identifies the sage green composite fibreshell case, which is paired here with a green one-piece nylon strap for a tonal, uniform look. Against that muted green, the matte black dial pops, its tritium-lit markers and hands visible at any hour. The government marking on the dial, repeated on the caseback, reflects Marathon's long record of supplying watches to the U.S. and Canadian militaries and other agencies.

Every GPM is made to MIL-PRF-46374G, Type II, Class 4. Power comes from a 24-jewel automatic movement based on the NH35, with around 41 hours of reserve and the ability to hand-wind through the crown. Sapphire crystal, a pressure crown and the classic 12/24-hour dial round out a watch that is light, comfortable and properly tough for daily use.

Marathon GPM Sage Green U.S. Gov Specs

• Reference: WW194003SG-0003
• Case: 34mm sage green fibreshell, 12.5mm, 41mm lug-to-lug
• Movement: NH35-based automatic, hand-winding, 24 jewels, approx. 41 hours
• Water resistance: 3 ATM
• Crystal: sapphire; crown: pressure type
• Lume: tritium tubes on hands and markers
• Dial: matte black, U.S. Government marking, 12/24-hour scales
• Strap: green nylon, one-piece, 10"; 16mm lugs

Green on green with a government signature, and a mechanical heart.