A small French Art Deco chrome electric table clock, Bulle Clock, circa 1920.
The 8.5-cm octagonal dial has Arabic numerals and is signed BULLE CLOCK Breveté S.G.D.G. patented. The straight hands are lacquered black.
The pendulum is suspended by a steel suspension spring and has a electric coiled bob running over a curved electro magnet. The oscillation of the pendulum switches the magnet on and off, keeping it swinging. This oscillation is used to turn the hands.
The chrome rectangular four-glass case has a stepped top. It has doors to the front and back. The stepped base is raised on bracket feet.
(Height) 23 cm (Width) 16.5 cm (Depth) 13.3 cm
(Height) 9.1 in (Width) 6.5 in (Depth) 5.2 in