Designed for use in the most extreme conditions, this Casio Mudmaster Black Resin Bluetooth Men\'s Watch is equipped with an impressive range of tech features intended to support land missions. At A Glance  Presented on an army green resin strap with buckle fastening 55.4mm case size with 200m water resistance Black dial with luminous coated watch hands Numbered hour markers and indexes with day and date display Powered by lightBluetooth connectivity Compass and thermometer features Shock resistant