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. Sleek, elegant and ultra-thin, the Citizen Eco-Drive Stiletto is the perfect dress watch. Rose gold plated stainless steel 38mm case, brown leather strap, white dial. Ref: AR1133-15A Product InformationBrand: Citizen Eco-Drive Case Material: Rose Gold Plated Stainless SteelCase Size: 38mmType of Strap: Brown Leather Strap Glass Material: Sapphire CrystalDial: WhiteWater Resistant: 30mGender: Mens