Prince Philip has the accuracy of his watch tested in the Chronometer Department.
Various GV's. observatory showing equatorial group (domes housing various types of telescopes). Shots of Hurstmonceaux Castle (originally built in 1440, present building restored early 1900s and many of original bricks used, it is the largest brick building in the country. Now houses a number of administrative departments of the observatory, the Library administrative offices).
GV's. observatory area, Solar Dome in foreground. Prince Philip, Duke of Edinburgh, arrives and is met by Astronomer-Royal. Duke and Astronomer-Royal go into Equatorial buildings. Duke entering Dome. Duke looks through telescope. Shots of telescope. Shots of Duke in Dome with the Astronomer-Royal. Shots of Duke at the Meridian group, met by Dr. Atkinson. Duke sees reversible Transit Circle, an instrument like a very large surveyor's Theodolite used to determine the position of the stars and of the sun and planets. etc. Walking shot of Duke passing Solar Dome.
Shot of Duke in Chronometer Department, responsible for maintenance of navigational timepieces used by Royal Navy. Duke watches daily check by lady assistant and watches tested for waterproofing. Duke sees various types of watches serviced in chronometer workshop and his own watch is tested by Mr. D.W. Evans.