Is my Citizen Clock an Eco-Drive? No, none of the Citizen Clocks are Eco-Drive. They all require either a AA battery or can be charged via a USB charger (i.e. Sensorytime). Related articles How do I get a manual for my watch? What is Eco-Drive? How do I charge my eco-drive watch? How do I set my watch? How do I find my watch caliber number?