Tuesday, March 1, 2016

Longines Lindbergh Hour Angle Watch

Longines Lindbergh Hour Angle watch was developed by Lindbergh to aid in calculating the hour angle – the angular distance of a celestial body from Greenwich, an essential part of aerial navigation – from the Weems Second-Setting watch. 

The use of more sophisticated navigation methods, as well as highly specialized charts for celestial objects, eventually made them obsolete.  The Smithsonian Institute does have a vintage Hour Angle watch in its collection but it doesn't look like it was Lindbergh's – the watch was donated by the Stanley King family, and Stanley King was a collector of Lindbergh memorabilia – souvenir objects like commemorative plates – not Lindbergh's personal effects.

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