W-800H-1BVDF This Casio W-800 digital model features a black resin band with a matching black resin case and a clear digital display for a practical sporty look. Built with resin glass and 100-meter water resistance, it offers dependable durability with an approximately 10-year battery life. Confirmed functions include an LED backlight, dual time, 1/100-second stopwatch, multi-function alarm with snooze, hourly time signal, full auto-calendar, and 12/24-hour format, making it a practical choice for everyday wear and travel.