Plaza Watch International - - The 50 Most Influential -

In 1927 Charles Lind­bergh flew solo across the At­lantic in a record time of 33 hours and 30 min­utes. This pi­lot lived and breathed avi­a­tion, and one of the off­shoots of his life­long pur­suit was the Hour An­gle Watch, which he de­signed as a nav­i­ga­tional aid for pi­lots. The watch was man­u­fac­tured by Longines to Lind­bergh’s spec­i­fi­ca­tions. Highly vis­i­ble in a 47.5mm case, the orig­i­nal Hour An­gle Watch was con­ceived to be used to­gether with a sex­tant, a nau­ti­cal al­manac, and a ra­dio set for re­ceiv­ing the time sig­nal. Thus a pi­lot could de­ter­mine the Green­wich hour an­gle, mean­ing lon­gi­tude. Dur­ing the early days of avi­a­tion, the Hour An­gle Watch was a pi­lot’s sta­ple in­stru­ment.

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