Authentic G-Shock Casio Master of G Mudmaster Carbon Core Guard Green GGB100-1A3. Shock resistant, Water resistance, Mud Resistant. Thermometer, Altimeter/Barometer, Digital Compass, Step Counter. 38 time zones (38 cities + coordinated universal time), daylight saving on/off, Home city/World time city swapping. Mobile link (Wireless linking using Bluetooth®).Battery life: 2 years on CR2025. The item "G-Shock Casio Master of G Mudmaster Carbon Core Guard Green GGB100-1A3" is in sale since Sunday, September 1, 2019. This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Watches\Wristwatches". The seller is "theluxurycity" and is located in McAllen, Texas. This item can be shipped worldwide.