Brille Type 1459 The energy necessary to impulse the pendulum is provided by a small battery contained in the box of the regulator, whose capacity is sufficient to ensure operation for several years. The whole of the beam, the reel and the pile forms a motorized and autolevelling system, which ensures by principle the constancy of 1 amplitude of the oscillations. This characteristic, joined to the care taken in construction, guarantees our apparatuses an absolute operating safety, a remarkable precision and an economy. Electric regulator “BRILLIÉ” (Pendulum Type of chimney) Base and cornice out of gilded bronze, marble or onyx, case in glass and gilded copper. Height 55cm- Width 29cm Depth 19cm. remarkable precision and an economy.