Caring For Your Antique Clock

Antique clocks run best when they are not subjected to extreme temperature changes. That means keeping them away from sunlight, radiators, ovens and any other source of heat. Ironically, mantel clocks, despite their name, should not be placed on the mantelpiece, at least during a working fire - rising soot and temperature fluctuations can impair efficiency and threaten longevity of the movement.

Keep antique pieces wound with a snug-fitting key, being careful not to overwind.  Experts also recommend that you get in the habit of winding at the same time every day.

Ensure your clock sits or hangs level, especially pendulums.  A balanced swing will keep the clock beating correctly.  Always remove the pendulum before moving the clock, otherwise it throws off its rhythm and damages the spring.
Clocks accumulate dirt over time - the oil in the movement can thicken and become gummy, and eventually the clock will stop running. A sure sign of impending trouble is if your clock stops when a room gets extremely cold and then starts working again when temperatures warm up.

Visit a horologist every few years for a proper cleaning and oiling.  They will remove the movement from its case to make sure parts are rust-free and not unduly worn, and inspect the teeth to check they are not bent. Consider a professional overhaul every 10 years or so.

Treat wood cases as you would any piece of fine furniture. Dust them with a soft brush or untreated cloth on a regular basis and protect them from direct light and extreme household dryness or dampness. The condition of the wood is an important part of the clock's value.

Unsurprisingly, antique clocks are worth more if they are functioning, but restore with care and keep in mind that replacing major parts devalues a clock's worth.