Longines Master Collection Moonphase

The Longines Master Collection Moonphase, reference L2.909.4.78.3, has a 40 mm round case in steel. The watch has a moon phase display. The case is 11.1 mm thick and 47 mm lug-to-lug, with water resistance rated to 30 metres. Self-winding calibre L899.5 provides up to 72 hours of power reserve and is visible through a transparent case back. A scratch-resistant sapphire crystal covers the hour and minute display. The silver barleycorn dial carries painted Arabic numerals alongside blued steel hands. 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 central seconds appear on the dial.