Citizen’s simple yet revolutionary Eco-Drive technology harnesses the power of light, whether natural or artificial, and converts it into energy, storing the surplus in a power cell. Designed to charge from any form of light source, from sunlight to desk lamps, you can go about your daily life and be confident that your Eco-Drive won’t stop. This Citizen mens watch features a stainless steel and gold PVD bracelet and 40mm round case, and a sleek white dial with date window. Ref: BM7314.55A Product InformationBrand: Citizen Eco-DriveCase Material: Stainless SteelCase Size: 40mmType of Strap: Stainless Steel Bracelet Glass Material: Sapphire CrystalDial: WhiteWater Resistant: 100mGender: Mens