A rare and interesting German walnut wall regulator with electric rementoire by Chronos to a design by Dr. Herman Aron, circa 1890.
Designed to run off 200 volts DC, we have converted it to a safer 3 volts DC.
The four pillar timepiece movement has a small spring-box to the greatwheel arbor and deadbeat escapement. The tapered backplate is stamped PATENT over number 290. The great wheel arbor is fitted with a superbly finely crafted bevel gear to facilitate torque to be delivered from the electric rementoire mechanism fitted to the case above. The rementoire mechanism has a rotating electromagnetic armature and switch gear to allow periodic oscillation against a ratchet wheel fitted with maintaining power to compensate for loss of delivery whilst the armature is resetting.
The glazed door of the case allows the wood-rod pendulum to be seen, and the glazed sides show the movement. The front door surround has book-matched veneers, and the backboard is quarter veneered.
6.25 inch circular silvered Arabic numeral dial with subsidiary seconds dial and inscribed CHRONOS to the centre, with blued steel hands and a brass bezel.
The interior of the case is fitted with a ceramic insulated coil power supply to the left hand side of movement and with an enamel beat scale below the pendulum. The base is fitted with a brass plaque inscribed No: 290, Electric: Clock, Dr. Aron’s System, for direct currents, 200 Volt and REFERENCE No. W 433 .