Longines Lindbergh Hour Angle
A navigation watch for airmen, designed by Charles Lindbergh after his flight across the Atlantic.
Lindbergh had navigated with a sextant and tables when he flew across the Atlantic in 1927. He designed a watch that made it easier to work out longitude, and Longines made it from 1931.
Materials: Silver or steel; hand-wound movement
Manufacture: Made in Saint-Imier; the centre disc can be turned to set the watch to a radio signal.
The rotating bezel and the rotating centre disc.
The very large case, to be worn over the flying suit.