This tough master of g mudmaster men's watch from casio employs a shock-, dust-, and mud-resistant structure for the rugged worker and fearless adventurer. 51mm carbon fiber-reinforced resin case and case back cover; black on-plated stainless steel bezel black analog/digital dial with neobrite hands and markers mineral crystal features include digital compass, altimeter/barometer, thermometer, step counter, led light and more pair to smartphone via bluetooth® and use the casio watches app japanese quartz and digital movement black bio-based resin band; buckle clasp water-resistant to 200 meters