F-91WS-4 This Casio model features a translucent pink resin band with a matching pink resin case and a digital display for a soft modern take on the classic F-91 design. Built with lightweight resin construction, resin glass, and water resistance, it is designed for dependable daily wear with a slim compact profile. Confirmed functions include LED light, a 1/100-second stopwatch, daily alarm, hourly time signal, auto-calendar, and 12/24-hour format, making it a practical choice for users who want a simple and reliable digital watch with distinctive everyday styling.