Alarm The Alarm will remind you of repeated events with a beep, which you can set to any time. Altimeter This watch can measure altitude. It is helpful in climbing, hiking and skiing. Backlight The backlight is a dial illumination that allows you to use this watch in the dark. Barometer This model measures atmospheric pressure. You can forecast weather changes using it. Chronograph You can measure the amount of time between two events using this watch. Cold Resistance This watch will work when others freeze. Compass You will never go astray with this watch. Countdown Timer Timer indicates the end of the time period you set. Glowing Hands The hands of this model have a luminous layer that glows in the dark. Glowing Markers The markers of this model have a luminous layer that glows in the dark. Moon Phase This watch indicates current moon phase: new, quarter, half and full moon. Perpetual Calendar Will automatically show you day, date and month, including leap years until the year 2100. Power Reserve Indicator You will always know how much energy your watch has and when it should be charged or winded. Radio Controlled This watch receives a calibration radio signal, ensuring that the displaying time is always exact. Screw-down Crown The crown is protected by screwing mechanism, which improves water resistance. Solar Powered This watch can be charged from almost any light source and run few months or more in the dark when fully-charged. Thermometer This function allows you to know the current temperature. Tide Graph You will be able to see the low and high tide phases for those location and date that you set. -Brand: CASIO -Model: PRW-70Y-1ER -Collection: Pro Trek -Gender: Men -Time Indication: Analogue - Digital -Functions: Multifunction -Mechanism: Quartz -Case Material: Resin -Color Sphere: Black -Material of Strap: Resin -Color of Strap: Black -Type of Closure: Buckle -Waterproof: 200m ( 20 bar / 20 atm ) -Calendar: Date -Case Dimensions: 50 mm. Of Case Excluding Crown -Luminescent: Yes -Glass: Mineral