Casio B640WB-1BEF Classic Digital Watch with Stainless Steel Band - Black A stylish update of a classic Casio design, this timepiece is built for classic and street styling. The piece features a digital display and is perfect for everyday wear. 5 Bar Water Resistant means that the watch is also suitable for swimming but NOT snorkelling, LED backlight for the digital display (Full auto LED light, selectable illumination duration, afterglow),As soon as the countdown stopwatch reaches 0 minutes and 0 seconds and indicates this by emitting a signal tone, it automatically returns to the preset time value and begins counting backwards again. Features: Water Resistant 50 Metre / 5 Bar LED back light for the digital display Multi alarm Repeat Countdown Timer Stopwatch 1/100th Sec Stopwatch