Longines Avigation BigEye

The Longines Avigation BigEye, reference L2.816.4.53.2, is a chronograph with a 41 mm round case in steel. The black dial has painted Arabic numerals and sandblasted silvered hands. The case measures 14.5 mm thick and 48.7 mm lug-to-lug, with water resistance rated to 30 metres. Self-winding calibre L688.5 provides up to 66 hours of power reserve and beats at 28,800 vibrations per hour. A scratch-resistant sapphire crystal covers the dial, with several layers of anti-reflective coating on the underside. The dial includes small seconds. A brown calf leather strap with a calf leather underside closes with a pin buckle.