The Carbon Fiber Collection masterfully blends the intricacy of fine watch face design, the dramatic styling of carbon fiber and the strength of solid forged brass cases to create a truly unique series of clocks, barometers and tide instruments. This barometer is a distinctive addition to any boat or home. Our Carbon Fiber Barometer features a lacquered solid forged brass case with chrome finish, screw bezel, a double bellows holosteric barometer movement and a carbon fiber etched dial with both inch and milibar scales. Features: Two Year Warranty Holosteric Movement 4 1/2" Dial Dimensions: 5 3/4" Dia. X 2 1/2" Depth Weight: 6 lbs Battery Included