Casio CGW 500 "Cosmo Phase" - 1985 - It's oval-shaped LCD displays not only all nine planets and their orbit around the sun, but also the orbit of Halley's Comet which is
Casio Cosmo Phase - An old classic vintage...... | WatchUSeek Watch Forums
What's the most complicated watch you have ? The most interesting complication ? | Page 4 | WatchUSeek Watch Forums
Solar System in a Watch: Why the Casio cosmophase is an important milestone in horology | WatchCrunch