Longines Flagship Classic

The Longines Flagship Classic, reference L4.274.4.57.6, has a 26 mm round case in steel. The watch is set with diamonds. The case is 7.9 mm thick and 32.4 mm lug-to-lug, with water resistance rated to 30 metres. Self-winding calibre L592.5 provides up to 45 hours of power reserve and is visible through a transparent case back. A scratch-resistant sapphire crystal covers the hour and minute display, with several layers of anti-reflective coating on the underside. Polished silvered hands indicate the hours and minutes on the black lacquered polished dial. A steel bracelet fastens with a triple safety folding clasp and a push-piece opening mechanism.