This is the Casio Standard F91W-1 Digital, a no-fuss classic that has been a go-to watch for decades. The compact resin case measures 38.2 x 35.2 x 8.5mm and weighs just 21g, so it sits lightly on the wrist without feeling bulky. It comes packed with practical features including a stopwatch, LED light, alarm and calendar, all in a clean black design that suits anyone. Why You'll Love It - Light and comfy - at just 21g, you'll barely notice it's there. - Practical features - stopwatch, alarm, LED light and calendar all in one. - Water resistant - splash-proof for everyday peace of mind. Care Tip Wipe the case and band with a soft damp cloth regularly, and avoid submerging beyond its splash-proof rating.