Features:Quartz battery movement, both of LCD display and analog display are available, easy for adjusting World Time and GMT when need.Double LCD display style, time and date are shown separately.Support for LED night vision, green back light gives you good vision on watch when in the dark.Watch case and band are made of high quality plastic and rubber. Big round watch case and small round LCD decorative display bring cool and sport appearance.Descriptions:Stainless steel watch clasp is durable in use.6 functions: Time, Alarm, Date, Chronograph, GMT and Night visionWaterproof style, no need to take off the watch while swimming or cleaning car. (Avoid hot/warm water.)Specifications:Model: 1301Watch Case Diameter: 50mmThickness: 13mmWatch Band Width: 22mmWrist circumference: 253mmColor: Black/Army GreenSize: 253*50*13mmPackage including:1 * Smart WatchNote:Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.Please allow slight measurement deviation caused by manual measurement, thank you for your understanding.