387  Watches, Clocks, Clockwork Operated Devices, and Parts

Establishments primarily engaged in manufacturing clocks (including
electric), watches, watchcases, mechanisms for clockwork operated devices,
and clock and watch parts. This industry includes establishments primarily
engaged in assembling clocks and watches from purchased movements and
cases. Establishments primarily engaged in manufacturing timeclocks are
classified in industry 3579; those manufacturing glass crystals are
classified in industry 3231; and those manufacturing plastics crystals are
classified in industry 3089.