Casio Men's G7900-1 G-Shock Rescue Digital Sport Black Resin Watch Made in USA or Imported Round sport watch featuring four-point design protection, large buttons and display format, as well as tide and moon-phase data 50 mm resin case with mineral dial window Digital display Resin band with buckle closure Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving