Casio G-SHOCK GPS Heart Rate Monitor Rangeman Yellow Mens Watch GPRH1000-9In the most extreme situations, you need technology that you can rely on. The yellow G SHOCK Rangeman GPRH1000 9 is as reliable as they come. The suite of innovative features like GPS navigation, heart rate monitor, and altitude and barometric data, give you critical information right when you need it. Case size (L W H) 60. 6 53. 2 20. 3 mm Weight 92 g Case and bezel material Resin Bio based resin Bio based resin band Mud Resistant Shock Resistant 200