Greenwich Commemorative Celestial Watch made by AccuristThe Celestial Watch is a precisely designed analog quartz watch that displays not only the current time but also the correct positions of the constellations as they move across the sky. The Celestial Watch shows azimuth (bearing) and altitude (angular position above the horizon) of the major fixed stars, nebulae, galaxies and star clusters, displays local sidereal (star) time, stellar spectral type. The Celestial Watch also has features that provide such convenient information as the position of the sun, time of sunrise and sunset, and thus the hours of darkness when astronomical observations are made. Specifications - Calibre 4P92, frequency of oscillator 32,768Hz, accuracy within +/- 20 seconds per month, battery SR626SW, battery life 3 years. The watch is in 'as new' condition, very little use as can be seen from the photos, leather strap. Comes complete with all original packaging and instructions. Good luck bidding, feel free to ask any questions. International postage is now offerred and an estimate provided, I do reserve the right to make an additional charge if levied by UK postal services for posting to the specified countries listed.