The perfect companion for your aquatic adventures, this Longines HydroConquest automatic chronograph is tough enough for even your most challenging days on the water. We love the blue rubber strap. At A Glance  Blue rubber strap 41mm stainless steel case with a blue ceramic unidirectional rotating bezel and 300m water resistance Scratch resistant sapphire crystal glass with double anti-reflective treatment Sunray blue dial with luminous Arabic numeral and dot hour markers Three chronograph sub-dials Date window at 4.30 Transparent caseback Powered by a Caliber L688 automatic movement Power reserve of up to 54 hours