【ELGIN USA SOLAR FK-523-C】Elgin Solar Watch ☆ Black Dial The FK-523-C is a solar model from the long-established American brand "ELGIN". It's an eco-friendly model that charges with sunlight, eliminating the need for battery replacement. There is a malfunction. The calm black dial creates a sense of luxury and masculinity. With its simple and stylish design, it works well for both business and casual occasions. This is a popular watch that combines practicality and design.