Longines HydroConquest GMT

The Longines HydroConquest GMT, reference L3.790.4.56.9, is a GMT watch with a 41 mm round case in steel. The sunray black dial has applied indexes and polished silvered hands. The case measures 12.9 mm thick and 49.4 mm lug-to-lug, with water resistance rated to 300 metres. Self-winding calibre L844.5 provides up to 72 hours of power reserve. A scratch-resistant sapphire crystal covers the dial, with several layers of anti-reflective coating on both sides. A black rubber strap with a synthetic lining closes with a triple safety folding clasp and a push-piece opening mechanism with a fine adjustment system. The dial includes a date display and central seconds.