Longines Spirit Flyback

The Longines Spirit Flyback, reference L3.821.4.53.6, is a chronograph with a 42 mm round case in steel. The watch is chronometer-certified and has a flyback function. The case measures 17 mm thick and 49.5 mm lug-to-lug, with water resistance rated to 100 metres. Self-winding calibre L791.4 provides up to 68 hours of power reserve and is visible through a transparent case back. A scratch-resistant sapphire crystal covers the dial, with several layers of anti-reflective coating on both sides. The dial includes small seconds. A steel bracelet closes with a double safety folding clasp and a push-piece opening mechanism. The sunray black dial has applied Arabic numerals and PVD bronze colour hands.