Longines Master Collection Chronograph

The Longines Master Collection Chronograph, reference L2.759.4.78.3, is a chronograph with a 42 mm round case in steel. The silver barleycorn dial carries painted Arabic numerals alongside blued steel hands. Self-winding calibre L688.5 provides up to 60 hours of power reserve and is visible through a transparent case back. A scratch-resistant sapphire crystal covers the hour and minute display. A brown alligator leather strap with a calf leather underside fastens with a triple safety folding clasp and a push-piece opening mechanism. A date display and small seconds appear on the dial. The case is 14.2 mm thick and 49.5 mm lug-to-lug, with water resistance rated to 30 metres.