The Longines HydroConquest model L3.369.3.87.7 showcases a stunning white mother-of-pearl dial adorned with diamond hour markers and elegantly crafted gilt hands. Its case is constructed from stainless steel, measuring 30 mm in diameter, and is complemented by a bracelet that features accents coated in yellow gold PVD. Securing the bracelet is a reliable double safety folding clasp. The overall case has a thickness of 9.55 mm and spans 37.8 mm from lug to lug, equipped with a unidirectional rotating bezel, a screw-down crown, and a screw-down case back, ensuring water resistance up to 300 meters. Protecting the dial is a sapphire crystal with several layers of antireflective treatment on both surfaces, while visibility in dim conditions is enhanced by the use of Super-LumiNova. Powering the watch is the quartz caliber L152.3, which displays the hours, minutes, central seconds, and includes a date function.