The Longines Mens Hydro Conquest Brown Dial L3.780.3.78.6 watch combines a 40mm round shaped stainless-steel case and silver stainless steel bracelet with a push button deployment clasp. It has a grey analogue dial which is protected beneath sapphire crystal glass. Power is generated by the automatic movement. This model also has a water resistance of up to 300 metres. Watch also has a power reserve of 72 hours.