A chromium-plated Atmos timepiece, No. 4914, J. L. Reutter, France, circa 1930

4½-inch silvered annular dial signed Atmos, Pendule Perpetuelle, the inner minute track set with red and white pastes, visible nickle movement with large torsion "balance wheel" pendulum, the rear movement strap numbered 4914 and signed on a plaque Brevets J. L. Reutter, S.G.D.G., the bevel-glazed rectangular case with tapered foot and pendulum locking lever