G-Shock GRAVITYMASTER Emergency Colors Black Men's Watch GRB300EC-1A Brand-New, 100% Authentic.ItemG-Shock Men's WatchModel #GRB300EC-1ASeriesMaster of G GRAVITYMASTERCaseShock Resistant / Carbon Core Guard StructureCase BackStainless SteelCase Width54.7 mm (Case Thickness - 15.7 mm)Dial ColorBlackDial FeaturesMobile Link (Wireless Linking via Bluetooth) / Dual Time / Stopwatch / Countdown Timer / Daily Alarm / LED Light (Super Illuminator) / CalendarWatch LensMineral GlassStrap ColorBlackStrap MaterialResin Band (Strap Width 28 mm / Strap Length 8 inches)ClaspPin BuckleMovementTough Solar (Solar-Powered)Water Resistant200 MetersPowered by ExportYourStore.com Brand-New, 100% Authentic. ItemG-Shock Men's WatchModel #GRB300EC-1ASeriesMaster of G GRAVITYMASTERCaseShock Resistant / Carbon Core Guard StructureCase BackStainless SteelCase Width54.7 mm (Case Thickness - 15.7 mm)Dial ColorBlackDial FeaturesMobile Link (Wireless Linking via Bluetooth) / Dual Time / Stopwatch / Countdown Timer / Daily Alarm / LED Light (Super Illuminator) / CalendarWatch LensMineral GlassStrap ColorBlackStrap MaterialResin Band (Strap Width 28 mm / Strap Length 8 inches)ClaspPin BuckleMovementTough Solar (Solar-Powered)Water Resistant200 Meters Powered by ExportYourStore.com integration by