FIELD: time instruments.
SUBSTANCE: time devices, including portable clocks, stationary clocks, and chronometers. Clocks containing a case, a dial, a clock mechanism, an arrow mechanism, a crown, an hour and minute indicator, additionally contain a system for displaying the azimuth of sunrise and sunset, as well as a north indicator on the dial. At the same time, the system for displaying the azimuth of sunrise and sunset includes a cam of the azimuth of sunrise and sunset, which is made on the basis of a preliminary calculation of the azimuth of sunrise and sunset in a given area.
EFFECT: creation of a clock with an indicator of the azimuth of sunrise and sunset, and the clock is mechanical or electromechanical, in which a mechanical display unit is used to indicate the azimuth of sunrise and sunset, which has a simple design.
9 cl, 11 dwg, 1 tbl
