Marathon
34mm Sage Green General Purpose Mechanical (GPM)

Commonly known as the General Purpose Mechanical (GPM). It can be wound through the automatic self-winding rotor or by manually winding the crown. Manufactured in accordance with MIL-PRF-46374G, Type II, Class 4. The General Purpose Field Watches are built to strict military standard, MIL-PRF-46374G, and finding its heritage since the development of that spec. The GP Field is even named after the Spec; WATCH, WRIST: GENERAL PURPOSE. Each General Purpose Field Watch features a 34mm high-impact composite fibreshell case for ultra-light durability.