Longines watch Spirit Pilot Flyback 39.5mm blue manual winding steel L3.721.4.93.6

The LONGINES Spirit Pilot Flyback collection captures the brand's constant commitment to innovation. With its flyback function, this chronograph highlights LONGINES' pioneering experience in this field. In the early 1930s, the winged hourglass brand launched its first model with a flyback function and obtained the patent for the technology on June 16, 1936, marking a first worldwide achievement. Designed as a revolutionary tool for pilots, the flyback complication allows different phases of flight to be timed in succession, significantly improving navigation efficiency. The precision of the LONGINES Spirit Pilot Flyback is brought to life by an exclusive Longines caliber, equipped with a silicon balance-spring and resistant to magnetic fields. This hand-wound mechanical model is officially certified as a chronometer by the COSC. Case MATERIAL Stainless steel and ceramic bezel GLASS Scratch-resistant sapphire crystal with multi-layer anti-reflective treatment on both sides sides DIMENSIONS 39.5 mm BACK screwed transparent with sapphire crystal FEATURES Rotating bezel bidirectional WATER RESISTANCE Waterproof up to 10 bar Dial and hands DIAL COLOR Matt blue HOUR ROUND Applied Arabic numerals HANDS Polished silver hands Movement and functions TYPE OF MOVEMENT Manual DESCRIPTION OF THE MOVEMENT hand-wound mechanical beating 28,800 vibrations per hour, with a power reserve of approximately 68 hours. FUNCTION Hours, minutes and small seconds at 9 o'clock SPECIAL FUNCTION Certified chronometer COSC CHRONOGRAPH Flyback CHRONOGRAPH FUNCTION Chronograph mechanism: central 60-second hand and 30-minute counter at the hour 3 Strap MATERIAL Steel BUCKLE With double safety folding clasp with micro-adjustment system General ANTIMAGNETIC Yes CHRONOMETER OFFICIALLY CERTIFIED Yes