Hamilton G.C.T. AN5740 Master Navigation Pocket Watch

Built for the demanding requirements of World War II aerial navigation, the Hamilton G.C.T. (Greenwich Civil Time) Master Navigation Watch is an incredible example of United States military watches. Issued to navigators and bomber crews of the U.S. Army Air Corps, these watches provided the precise timekeeping crucial to bombing missions, where accuracy could mean the difference between success and failure.

The matte black 24-hour dial was specifically designed to reduce glare and improve legibility under bright daylight conditions encountered during high-altitude operations. Its large, easy-to-read format allowed navigators to make rapid calculations while in flight.

Retaining its original mahogany navigation case, the watch remains an evocative survivor of the wartime aviation era. The fitted box protected the instrument during transport and storage, while the watch itself served as an indispensable component of a navigator’s equipment.

This watch measures 52mm in diameter

Restored, 18-Month Warranty

Circa 1940s