Sporty yet refined, this CITIZEN® Sport Chronograph is a perfect addition to your watch wardrobe. Featured with grey ion plated stainless steel case and bracelet, charcoal grey dial with rose-tone accents, 1/5 second chronograph measuring up to 60 minutes, 12/24 hour time and tachymeter. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number B620.