Longines Spirit Chronograph

The Longines Spirit Chronograph, reference L3.820.4.53.6, is a chronograph with a 42 mm round case in steel. The watch is chronometer-certified. The case is 16.5 mm thick and 51.4 mm lug-to-lug, with water resistance rated to 100 metres. Self-winding calibre L688.4 provides up to 66 hours of power reserve. The black matt dial carries applied Arabic numerals alongside sandblasted silvered hands. A steel bracelet fastens with a triple safety folding clasp and a push-piece opening mechanism. A date display and small seconds appear on the dial. A scratch-resistant sapphire crystal covers the hour and minute display, with several layers of anti-reflective coating on both sides.