What is commonly used to date most clocks?

The makers name is commonly used to date most clocks because it often establishes the origin and the time period during which the clock was made. Clockmakers frequently have distinct styles or techniques that can be linked to specific eras in history. By researching the maker’s name, collectors and historians can reference catalogs, registries, or histories of known clockmakers, which provides valuable context regarding the clock’s age.

Using the makers name helps to identify the clock's craftsmanship, design elements, and manufacturing techniques that were prevalent during the time they were active. This information is crucial in determining a clock's authenticity and value in the collectors’ market. In contrast, a serial number may only indicate a specific model or a production line rather than providing comprehensive historical context. The manufacturers’ history can offer insights but is often less immediate than the specific makers name. The purchase date is relevant for ownership records but does not provide intrinsic details about the clock itself.