Longines. A rare oversized silver hour angle aviator's wristwatch with indirect sweep center seconds

SIGNED LONGINES, LINDBERGH MODEL, NO. 5442750, CIRCA 1935

細節

Longines. A rare oversized silver hour angle aviator's wristwatch with indirect sweep center seconds
Signed Longines, Lindbergh model, No. 5442750, circa 1935
With gilt-finished lever movement, 15 jewels, bimetallic compensation balance, silver cuvette, the white enamel dial with black Roman numerals for the hours, bordering scale for 180 degrees represented by blue Arabic numerals, inner rotating disc calibrated for 60 seconds and 15 degrees, blued steel moon-style hands, blued steel indirect sweep center seconds hand, the large silver case with downturned lugs, revolving bezel calibrated for 15 degrees in green enamel and subdivisions in black enamel, hinged back and large ribbed crown, case, dial and movement signed
47 mm. diam.

拍品專文

The hour angle watch was invented by the renowned American aviator, Charles A. Lindbergh and introduced to the market in 1932. Lindbergh rose to international fame in 1927 when he became the first person to make a solo, non-stop Trans-Atlantic flight.

As the accuracy of mechanical watches can be affected by conditions aboard ships and airplanes, the hour angle watch provided a means by which this variation could be readily calculated when used in conjunction with radio time signals.