Tevise 8378 Automatic Mechanical Men Watch Count-downn Stainless Steel Wristwatch

Item Type: Wrist Watch
Brand: Tevise
Gender: Male
Style: Fashion & Casual & Business & Luxury 
Movement: Automatic Self-wind Mechanical Watch
Water Resistance Depth: 30M = 3ATM Life Waterproof (Sweat, Small raindrops not afraid, But don't flush, Bubble water, Bathing, etc.)
Dial Display: AnalogDial Shape: Round
Clasp Type: Fold Clasp with Safety
Case Material Type: Stainless Steel
Dial Window Material Type: Glass
Band Material Type: Stainless Steel Band
Dial Diameter: About 4.4cm
Case Thickness: About 1.6cm
Band Width: About 2.0cmBand Length: About 23.5cm
Feature: Time display 
Warm Tip:
1.Automatic mechanical watch without batteries, the motion of time pointers depend on the swing of arm, so you must wear it more than eight hours a day to keep precise time.2.When the watch totally cannot work, the crown should be rotated 25-30 rounds to clockwise direction.3.The two little dials are just for decoration,cannot adjust,no function. 
Package include:
1 X Tevise 8378 Mechanical Watch
The picture is only for reference, please consider carefully before purchase carefully. 
About Water-resistant Watches
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.Q: A 100M watch is surely strong enough on a shallow dive?! A: No! It isn't because it has not been high pressure sealed. 100M watches are only good for Snorkeling! Q: What will happen if I try to dive with a watch that is less than 200M Resistant? A: The watch's seal will be broken, it will flood and break..irrepairably. Q: So which watch to buy? A: Think about what you need it for and bear in mind that Scuba Watches (200M) look really cool but tend to be very heavy, which makes them uncomfortable for everyday use.