L37172969 Longines men's automatic perpetual chronograph quartz watch with blue dial, black PVD stainless steel case and rubber strap. Features luminous silver-tone hands/indexes/hour markers, fixed PVD bezel, date display at 4-5 o'clock position, three sub-dials for chronograph (60 sec/30 min/12 hour), perpetual calendar function showing day/month automatically until the year changes, analog dial type, scratch-resistant sapphire crystal glass. Powered by a Longines L289.2 quartz movement with battery eol indicator and shock resistance. Water resistant to 50 meters / 165 feet.