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US Patent 2008734 covers all, or does it?
The “Spirit and Scope of my invention” are the words Philip Van Horn Weems used ...
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The last three ALL silver Hour-angles
In Stephanie Lachat’s beautiful book Longines through Time, she notes that the very last generation ...
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The First Generation Hour-angle or “Lindbergh”
The Longines Hour-angle watch is history’s most famous pilot watch and improved upon the Weems ...
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Dieudonne Costes – Incredible Hour-angle watch
Dieudonné Costes is best known for the extraordinary Paris to New York flight of September ...
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Amy Johnson’s Weems SOARS again.
Amy Johnson’s Weems watch SOARS again at a recent Sotheby’s auction selling for 88,200 pounds. ...
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The Hour-angle watch – a “Lindbergh”
The speed of the plane brought complex new navigational challenges. When traveling at 200 miles ...