Magic Hidden Touch Screen Red LED Digital Watch Men Women Sport Cuff Wrist Watch Green Watch Case Size: Approx 4.00cm. Watch Case Material: Plastic. Watch Dial Color: As picture show. LED Light: Red. Width Of Watch Belt: Approx 2.60cm. Watch Belt Material: Plastic. Length Of Watch: Approx 24.00cm. Daily Water Resistant (not for swimming or showering): Yes. How to set time? 1. Press your finger to the screen and the time is displayed. 2. Press screen again and wait a few seconds, the watch will go blank and the current hourly setting will blink. After setting the correct hour, you will be allowed to change the minute settings as well. 3. Following, press screen for a few seconds again and you can also set Year and Date orderly. Attention: Colors may not appear exactly as seen on photo in real life due to variations between the computer monitors and naked eye color difference.