Casio Collection Unisex Digital Watch, Silver, 38.2 x 35.2 x 8.5 mm, F-91WS-8EF

Microlight - A built-in light illuminates the watch face from the side. Light weight acrylic glass screen with a durable resin case. Synthetic resin is the ideal material for wrist straps thanks to its extremely durable and flexible properties.
12/24-hour timekeeping - Times can be displayed in either a 12-hour or 24-hour format. Stopwatch function - 1/100 sec. - 1 hour. Elapsed time, split time and final time are measured with 1/100-sec accuracy. The watch can measure times of up to 1 hour.
Daily alarm - The daily alarm reminds you of events that recur every day, by emitting an audible signal at the set time.
Automatic calendar with Date, Day and Month - Once set, the automatic calendar always displays the correct date.
7 Years - 1 Battery. The battery supplies the watch with sufficient energy for approx. seven years. Water resistance classification (WR) to ISO 22810. This model is water resistant to DIN 8310 / ISO 22810, and thus is resistant to minor splashing. Watch dimensions: Width; 33.2mm Height 38.2mm Thickness; 8.5mm