Color time (Chroma Chron), the anti stress watch – the concept watch of the 1980s, invented and patented by Tian Harlan in 1970s and licensed and produced under the Pierre Cardin label in Switzerland.
The time is indicated by carefully chosen colors to match twice each part of the day, so the dark blue of 6 AM will match the same color at 6 PM. The minutes are only to be guessed so you’ll never be late meeting someone at “pink” o’clock.
The battery may need to be replaced.
There’s no box or papers for this watch.