A wall clock is a timekeeping device designed to be mounted on a wall. It typically features a circular face with numbers or markers that indicate the hours and minutes. Most wall clocks use either quartz movement, which is powered by a battery, or mechanical movement, which relies on gears and weights. They come in various styles, sizes, and materials, making them both functional and decorative. Wall clocks serve the practical purpose of helping people keep track of time in homes, offices, and public spaces. Some modern wall clocks may also include additional features, such as digital displays, alarms, or temperature readings. Popular brands like Seiko and Howard Miller offer a wide range of designs to suit different tastes and environments.