NIENABER precision-second-pendulum clock, Germany around 1990, 4-side glazed case, black piano lacquer, door beveled glazed, regulator-enamel-dial, small second at 12, hour at 6, central minute, blued steel hands, rectangular brass movement, Graham-escapement with ruby-palets, lateral weight-track, 8 mm Invar-pendulum, cylinder-shaped pendulum lense, measures approx. 135 x 31 x 20 cm, condition 2-3