Hamilton Men Chronograph Automatic Watch Jazzmaster Performer Autochrono Swiss Made

H-THIRTY-ONE AUTOMATIC CHRONOGRAPH: Hamilton's H-31 calibre with Nivachron antimagnetic balance spring provides 60-hour power reserve at 28,800 bph — a sophisticated Swiss-made sports movement THREE-REGISTER CHRONOGRAPH: Sub-dials for 30-minute, 12-hour, and running seconds create a classic racing layout under a tachymeter bezel for speed measurement and elapsed time tracking BLUE SUNRAY DIAL ON STEEL BRACELET: Deep blue sunray dial in a 42mm stainless steel case paired with a brushed and polished five-link bracelet — sport-chic at its most refined SAPPHIRE CRYSTAL PROTECTION: Scratch-resistant sapphire glass and luminous applied markers ensure exceptional legibility in all light conditions — day, evening, or on the racetrack SWISS MADE JAZZMASTER CRAFTSMANSHIP: Exhibition caseback, deployment clasp, 10-bar water resistance, and Hamilton Swiss Made guarantee — an outstanding gift for chronograph enthusiasts