Longines Lindbergh Hour Angle in 10K YG filled - 1943 - Original timepiece

Longines Lindbergh Hour Angle in 10K YG filled - 1943 - Original timepiece

It is an "Hour Angle Watch" that can read the latitude and longitude calculation of the hour angle (hour angle) by the combination of the inner disc of the dial operated by the crown at 2 o'clock and the rotating bezel of the circumference, replacing what was calculated by the angle with the celestial body with time, and knowing where you are by the time difference between the standard time and another point. It is an aviation watch called "Hour Angle Watch". This watch is the second generation watch which was more practical being smaller than the 47mm original watch.

Beautiful and rare 2 tons round dial Longines Hour Angle. The dial has an outer cream color and inner gray color. The hour markers are black with Roman numerals, other are blue and red with Arabic style. At 6 o’clock is engraved Longines. The hands have the blue Breguet color and “Lancette” design. The bezel is engraved. The watch comes with two crowns. It is a 10K YG filled with engraved outside “Bill from Dad – 1943”. Around the back case, you have engraving too but it is difficult to read. Inside the case is engraved “Cased and time in the US by Longines – Keystone – J Boss – 10K Gold Filled – 9907909. The watch has a manual winding movement with 15 jewels. The watch has a Blue Longines strap with 16mm width between lugs.

History

Longines was born August 14, 1832 by a young man called Auguste Agassiz who became partner at “Comptoir Raiguel Jeune”, watch dealership in the Jura. After putting watches together mostly by watchmakers living in small farms, the comptoir sell them. The Co. becomes very prosperous. In 1847, the company changes the name for “Comptoir Agassiz & Co.” En 1866, the Co. buys a land called “Les Longines” to build production plant. One year later, the first watches “E. Francillon, Longines, Suisse” are introduced to the universal exhibition in Paris. In 1880, the company registered its patent as “Longines” and the famous trademark “the winged hourglass”. Then came the famous calibers, the 13.33Z, the 13ZN or the 30CH in 1947. The most memorable moment was the association with Charles A. Lindbergh who had flown his Spirit of Saint Louis across the Atlantic on May 27, 1927. Hour angle watch that made navigation easier for many a pilot on trans-oceanic flights was available from 1932. Longines was also the pioneer of electronic timekeeping.

Technical details

Manual winding movement with 15 jewels.

Measurements

Diameter excluding winding crown: 33mm


Length including lugs: 40mm