horography

from The Collaborative International Dictionary of English v.0.48

Horography \Ho*rog"ra*phy\, n. [Gr. ? hour + -graphy: cf. F.
   horographie.]
   1. An account of the hours. --Chaucer.
      [1913 Webster]

   2. The art of constructing instruments for making the hours,
      as clocks, watches, and dials.
      [1913 Webster]