Longines HydroConquest

The Longines HydroConquest, reference L3.782.4.56.9, is a dive watch with a 43 mm round case in steel. The sunray black dial carries applied Arabic numerals and indexes alongside polished silvered hands. The case is 11.9 mm thick and 53.5 mm lug-to-lug, with water resistance rated to 300 metres. Self-winding calibre L888.5 provides up to 72 hours of power reserve. A black rubber strap with a synthetic lining fastens with a double safety folding clasp and a push-piece opening mechanism. A date display and central 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.