horography

Century Dictionary and Cyclopedia

1. n. An account of the hours.
2. n. The art of constructing instruments for marking the hours, as clocks, watches, or dials; dialing.

Wiktionary

1. n. An account of the hours.
2. n. The art of constructing timepieces.

GNU Webster's 1913

1. n. An account of the hours.
2. n. The art of constructing instruments for making the hours, as clocks, watches, and dials.