The spherical desk clock is a fascinating and unique brass reproduction of an antique spherical desk clock. It has hemispherical glass lenses on both the front and back, and you can see a magnified view of the clock mechanism move through the back. The back lens has a small ground flat area so it will sit upright on a flat surface. The body of the clock is solid brass, and both the front and back are threaded and can be easily removed. The clock weighs 8.7 ounces (247 grams), measures 2 1/8 inches (5.4 cm) in diameter and its face is printed "STANLEY LONDON." The clock has a 17-jewel movement and its speed can be adjusted by removing the back and adjusting a lever near the spring.