Longines HydroConquest

The Longines HydroConquest, reference L3.779.4.56.6, is a dive watch with a 39 mm case in steel. The black lacquered polished dial has applied indexes and polished silvered hands. Self-winding calibre L888.5 provides up to 72 hours of power reserve. A scratch-resistant sapphire crystal covers the dial, with anti-reflective coating on both sides. A steel bracelet closes with a double security folding clasp with a micro adjustment system. The dial includes a date display and central seconds. The case has a unidirectional rotating ceramic bezel. The case measures 11.7 mm thick and 48.1 mm lug-to-lug, with water resistance rated to 300 metres; the case has a screw-down crown.