Longines HydroConquest

The Longines HydroConquest, reference L3.369.3.87.7, is a dive watch with a 30 mm round case with a yellow PVD coating. The watch is set with diamonds. Quartz calibre L152.3 powers the watch and uses a RENATA 364 battery. A scratch-resistant sapphire crystal covers the dial, with several layers of anti-reflective coating on both sides. Gilt hands indicate the hours and minutes on the white mother-of-pearl dial. A yellow PVD-coated bracelet closes with a double safety folding clasp. The dial includes a date display and central seconds. The case measures 9.55 mm thick and 37.8 mm lug-to-lug, with water resistance rated to 300 metres; the case has a screw-down crown.