From F to E
Hamilton designed the Khaki Field Mechanical Power Reserve with a brilliantly light touch. The classic American mil-spec field watch dial is sacred to watch enthusiasts, so it has to stay as intact as possible.
The indicator is so simple and fits in so well that it looks like it came from a 1960s prototype. With military pragmatism, the semicircular track runs from a red “F” for full to a red “E” for empty.
In fact, it looks more like a gas tank meter on an old car than a typical watch power reserve indicator. A “1/2” shows half charge, with four evenly spaced dashes filling out the track.
The hand on the indicator has a diamond tip with a long point, blending elements from the syringe minute and hour hands and the arrow seconds hand.