We're so happy to celebrate 40 years of Eco-Drive technology! #Repost gearpatrol with repostapp. ・・・ In celebration of the 40th anniversary of the original Eco-Drive, which was the first analog quartz watch powered by light, citizenwatchus has launched the world's thinnest light powered watch a.k.a. The Eco-Drive One. It's just 2.98 mm thick or about a millimeter thicker than a quarter. #betterstartsnow #baselworld2016 ( 📷 benbowersgp )