1850 to 1885
These clocks departed from the straight lines of the Biedermeier by adding grace and style with their flowing, serpentine lines. The serpentines and the transitional clocks smoothed the shift from the stark simplicity of the Biedermeier period to the elaborate and ornamental Altdeutsch and Baroque styles.
Most serpentine-style Vienna Regulators have wooden pendulum rods, brass bobs with zinc backs (though steel backs could be seen in the later clocks), and spun-brass bezels. Finishes are ebonized or faux (false-grained), although a limited number are made with mahogany and rosewood veneer.
Four-posted keyhole mounts were common throughout the serpentine period. Many of the early (pre 1860) serpentines had movements mounted to wooden seatboards that slide into wooden corbels mounted to the backboard. Most dials are two-piece porcelain. Hand styles trend from the simple designs of the Biedermeier period to the elaborate styles of the Altdeutsch.