Star Dial Fashion Pendant with Function!

This pewter star dial pendant with its moving parts and metal dials is an eye catching piece of functional hardware. Star dials were first used in the 15th century by navigators who told time by the position of the stars. They work so well because they are based on the North Star, which is almost exactly on the axis of the earth's tilt and always appears in the same position in the sky. Just set the middle wheel to the month, hold the dial upside-down and sight the North Star through the center hole. Move the top of the dial's arm to align with the uppermost stars of the Big Dipper, and read the time on the inner dial where the arm crosses the hour mark. On the reverse side of the pendant are outlines of the major celestial constellations. Comes with a 31" black silk cord and complete instructions.