The Casio F-91W-1DG is a truly iconic and timeless digital watch, celebrated for its simple design, durability, and reliability. It is part of the Casio Vintage collection and features a lightweight black resin case and a comfortable, black resin strap. The watch has a classic black dial with a green LED backlight for easy reading in the dark. Powered by a reliable quartz movement, it boasts an impressive 7-year battery life and is water-resistant, making it suitable for everyday wear. Key functions include a 1/100-second stopwatch, a daily alarm, and an auto-calendar. Its minimalist design and robust functionality have made it a favorite for decades.