More than 50 years ago, Citizen pioneered the world’s first light-powered watch—and sustainability has been a part of our DNA ever since. Our patented Eco-Drive technology enables our watches to be powered by any light source, continuously, sustainably, and purposefully. #CitizenWatch #CitizenSportLuxury #EveryCitizen #EcoDrive #purposefulpower #menswatch | Model: BL5607-54L