Specification: Item Type: Wristwatches Brand: SINOBI Gender: Male Style: Fashion !#!amp!*!amp; Casual Movement: Quartz Watch Water Resistance Depth: 30M = 3ATM Life Waterproof (Sweat、 Small raindrops not afraid、 But don't flush、 Bubble water、 Bathing、 etc.) Dial Display: Analog Dial Shape: Round Clasp Type: Folding Clasp with Safety Case Material Type: Alloy Dial Window Material Type: Glass Band Material Type: Steel Band Dial Diameter: About 3.8cm Dial Thickness: About 1.1cm Band Length: About 20.0cm Color: Black + Silver、 Black + Brown Package include: 1 X SINOBI Quartz Wrist Watch Note: The picture is only for reference、 please consider carefully before purchase carefully. About Water-resistant Watches Water Resistant Watches are sealed to withstand 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 !#!amp!*!quot;water-resistant.!#!amp!*!quot; 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.