The Longines HydroConquest 39mm is a Swiss dive watch with a stainless steel case, a ceramic bezel and a black dial with a date window. It is rated to 300 m and uses a sapphire crystal, so it covers swimming and recreational diving as well as daily wear. Its 39 mm case is smaller than the 41 mm and 43 mm HydroConquest sizes, which suits wrists that find larger divers bulky. Against rivals it trades some brand cachet for solid dive specs at a lower tier than Omega or Tudor divers.
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Owners of the HydroConquest line generally praise its build, water resistance and value against Swiss rivals. Many say the 39 mm size fits well and the ceramic bezel looks sharp. Common complaints are a stiff bezel action and a heavy feel on the steel bracelet.
The Longines HydroConquest Black Dial 39mm (L3.780.4.56.6) is a dive watch from the Longines Sport Collection. The line is made for men and women who want a high-performance watch that combines technical innovation with elegance. Longines is a Swiss watch brand founded in 1832 in Saint-Imier.
The watch has a 39mm stainless steel case that withstands depths of 300M. It has a ceramic bezel and a sapphire crystal. The black dial includes a date window.
