 Conservation
Antique clocks are unique objects - they are expected to keep working and telling time even when they are 2 - 300 years old. To achieve this without damage they must be dismantled and cleaned regularly. There is a natural temptation to polish the brass to a mirror finish, but the only parts of a clock that need polishing are where two metal surfaces are moving against each other - the pivots and pivot holes, gear teeth, and parts of the escapement. All other polishing
is purely cosmetic and damaging to the clock as it removes the surface of the metal and the protective patina of oxide.
If a clock is in sound condition with no sign of destructive corrosion, I prefer to avoid any abrasive cleaning or polishing of the clock plates and other surfaces, if the owner of the clock agrees. It doesn't look so pretty, but it will retain its history and work just as well.
An exception is made in the case of carriage clocks, skeleton clocks and the like which were designed to show off the polished movement, but because they are usually in a protective case or cover, less aggressive techniques are necessary.
The dial and hands of a clock are always on show, and their appearance is more important. The owner of the clock will be asked to decide on the degree of restoration required, but I always prefer a minimal approach where possible.
Painted dials often have damage and corrosion under the paint and need expert restoration to prevent further deterioration.
Clocks have often had bodged repairs done over the years. Whether to leave them or restore the part in the correct original style can be a difficult judgement. If it is functioning correctly and is not too offensive I will leave it alone. The owner will be informed of such decisions.
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