Longines "Hour Angle Watch - Lindbergh", Movement No. 57711743, Case No. 24339366, Ref. 989.5216, Cal. L989.2, 38 mm, circa 1987

A fine "hour angle" aviator's navigation watch with original box, certificate and operating instructions
Case: 18k gold, hinged push back with Longines logo, glazed movement, turnable gold bezel with angle horaire. Dial: white chapter ring, radial Roman hours, centre seconds, silvered inner rotating disc, blued Breguet hands. Movm.: rotorwind movement, rhodium-plated, "fausses côtes" decoration, 25 jewels, 2 barrels, Glucydur balance, shock protection for balance.