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 modern classic design timepiece features a stainless steel bracelet and 42mm case, grey colour dial and day/date function. 100m water resistant.Ref: AW0087-58H Product InformationBrand: Citizen Eco-Drive Case Material: Stainless SteelCase Size: 42mmType of Strap: Stainless Steel Bracelet Strap Glass Material: Sapphire CrystalDial: GreyWater Resistant: 100mGender: Mens