In 1927, Charles Lindbergh made history as the first person to complete a non-stop solo transatlantic flight - timed by Longines in its capacity as official supplier to the International Aeronautical Federation.
Shortly after, he devised an hour angle watch in collaboration with the Swiss watch brand that could be used to precisely calculate longitude during long-distance flights. It too went down in legend. Now Longines is reissuing this Hour Angle Watch as a limited series of 90 to mark the 90th anniversary of Lindbergh's exploit. Equipped with a rotating bezel for correcting the equation of time, and a mobile central dial to set the exact second, this timepiece also indicates the hour angle in degrees and minutes. The titanium case is exactly the same size as the original, at an imposing 47.5 mm in diameter, for easy handling even when wearing gloves.
Movement
Mechanical automatic, L699.2 (ETA A07.111) calibre, 24 jewels, 28,800 vib/h, 42-hour power reserve.
Functions
Hours, minutes, seconds, longitude (in degrees and minutes), seconds synchronised to a radiotransmitted signal (by the mobile central dial) correction of the equation of time (by the rotating bezel).
Case
Titanium, 47.5 mm. Black PVD steel bezel, steel "boule" crown. Multi-layer anti-reflective sapphire crystal. Water-resistant to 3 bar (30 m/100 ft).
Dial
Silver-toned with circular-brushed finish, galvanic black central dial. Degrees in painted black Arabic numerals. Rhodium-plated Breguet hands.
Bracelet/strap
Brown calfskin with buckle and extension.
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