The clocks that we have for sale were manufactured between the 18 th and the 20 th century. The material in which they are made vary, and can be a association of different materials such as golden or patinated bronze, faience, porcelain, biscuit, alabaster, marble, regul, brass, iron, natural, plated or painted wood. They usually house a movement called Movement de Paris, which has an eight-day power reserve, made of gear wheels, two springs (one for those without a repeating function), an escape wheel, a balance spring, and a hammer of spring for the repeating function. For best accuracy, the movement must be locked, in other words the pendulum must not stop, the ticking sound must be regular.
Adjusting: for the movements "suspension à fil", one only needs to bring the pendulum down when the clock is fast, and up when it is slow. For the movements "suspension à lame", the same operation is needed on the lent of the balance wheel.
Every hour and half hour you will hear the clock chime. It is its way to let us know of its presence in the room, they truly have a soul.
Clocks can house other types of movements such a movement comtois, foret noire, tic-tac, or electric.