This is a CITIZEN overseas model wristwatch. Imported from overseas, its rarity is a key feature. It has a distinctive design with a large dial. "Eco-Drive" is a watch that runs by converting light into electrical energy. It incorporates a solar cell that generates electricity when exposed to light, powering the watch. Excess electrical energy is stored in a secondary battery. The band is worn, so we recommend replacing it. This is a used item. Please purchase only if you understand this.