Lots of people collect clocks, pocket watches, and wristwatches, but far fewer folks are in the habit of opening up their precious timepieces and making their own repairs. If you are such a person, you know the importance of having a good selection of antique tools and parts on hand, from case openers and mainspring winders to extra dials and movements.

Some of the simplest parts needed to repair a clock require few tools or even mechanical abilities to install. For example, are the weights on that grandfather or regulator clock you’ve had your eye on unsightly? Weights are easily replaced, as are the pulleys, ropes, and chains they hang from. Clock keys are also common, in materials from brass to steel, while custom keys for clocks made by manufacturers such as Ansonia are also available.

Installing vintage dials and hands on everything from cuckoo clocks to calendar clocks are a fast way to give a tired-looking timepiece a new coat of paint. Brass pendulum parts can also improve the performance of your banjo clock or other type of wall clock, while new finials and glass can improve its appearance...