Open Faced Pocket Watch Style Compass Made of solid brass and combines elegance with practicality. Its large compass face allows a quick and accurate reading. Features a twist knob so that the needle may be locked in place while traveling and a sturdy fob so that a compass chain may be attached. Measures 2 1/4 inches (5.7 cm) in diameter and 7/16 inch (1 cm) thick. Polished to a beautiful high luster and weighs 2.7 ounces (76.5 grams).