Plastic Black Metronome. The time-honored pyramid design is realized in an attractive, durable casing of high-impact plastic with a wood-grain appearance. Wittner's precision wind-up mechanism is adjustable in the traditional increments from 40 to 208 beats per minute. Wittner is one of the oldest and most respected names in the world of mechanical metronomes. Imported from Germany, these fine timekeeping instruments are internationally known for their engineering and reliability. Wittner's continual refinement of traditional technology results in extremely accurate interpretations of the classic metronome design. (806K)