Kassel Wall Clock. This 31-day clock is 31-1/2" tall 12-1/2" wide and 5-1/2" deep. It has beautifully crafted wood with a glass front that reveals the swinging pendulum inside. Clock chimes the hour (5 times at 5 o'clock, etc.) and once on the half hour. Pendulum length adjusts to make the clock run faster or slower. It could easily become a family heirloom that can be enjoyed for years to come. Includes winding key. One-year warranty.