Combining technical innovation with elegance, this Longines HydroConquest Automatic Chronograph Men\'s Watch is dedicated to those looking for a high performance timepiece. At A Glance  Presented on a stainless steel bracelet with double safety folding clasp 43mm case size with 300m water resistance Black dial with chronograph sub dials Numbered 12 o\'clock with dot hour markers Date window at 4 o\'clock Unidirectional rotating bezel and screw in crown Scratch resistant sapphire crystal glass Powered by an automatic Swiss movement Power reserve of 54 hours