Features:
Amazing looking lava LED watch
High performance IC chipset for accurate timekeeping
Curved dial with 3D mirror lens for better fitness and clear view
High strength zinc alloy strap
Fold-Over-Clasp with fixed clip
LED light time indication with standby mode, low power consumption
3AMT normal water resistant, not for showering or swimming

You can click the URL to download User's Manual - Skmei English and Chinese Manual

Water Resistant Watches are sealed to witstand some pressure.

Water resistance is tested in measurements of atmosphere (ATM). Each ATM denotes 10 meters of static water-pressure. This is not the depth to which a watch can be worn. Many watch cases will list the basic measurement of 1 ATM as "water-resistant." These watches will withstand small splashes of water but should not be worn while washing the hands or submerging the hands in water.

Remember, water resistance is tested under static conditions. Wearing a watch which is 50 metres water resistant in water will expose the watch to a much greater pressure than during a 50 metre static test. Therefore the number of metres shown on the watch does not indicate the depth that the watch can be taken to.

Here is a general guide
50M = 5ATM = Shower Proof - it's ok to get it wet a bit.
100M = 10ATM = Extended Water Exposure good for swimming or snorkeling.
200M = 20ATM = Pressure Resistant made for Scuba and Skin Diving.