Same 41mm case as the rest of the mid-size HydroConquest run, but here Longines goes back to black — the dial color this line was actually designed around, if you look at how the lume plots and hands are set up to read against it. Rubber over steel is again the sensible strap choice at this depth rating, shedding weight without giving up water resistance. Nothing about the spec sheet here surprises me: 300m, automatic, date window at three. It's the version I'd recommend if you want the HydroConquest at its most legible rather than its most decorated.