From the manufacturer
For over 40 years, Citizen’s proprietary Eco-Drive technology has served as the prime example of how the brand is dedicated to making the world and its environment a better place. A simple yet revolutionary concept, Eco-Drive harnesses the power of light from any natural or artificial light source and converts it into energy, eliminating the need for any battery replacement. Using renewable energy to keep Citizen Eco-Drive watches running forever.
Citizen Men’s Eco-Drive Stainless Steel Watch with Date, BM7330-59L
The byword is versatility for this handsome 3-hand Citizen Corso watch crafted in stainless steel. Details include a sophisticated deep blue dial and a date window perfect for the every day businessman. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number E111.
Case Diameter: 40mm
Water Resistant To 330 Feet