http://www.calibre11.com/heuer-1000m-spirotechnique/ (http://www.calibre11.com/heuer-1000m-spirotechnique/)
According to this fascinating article, Zodiac (under Monnier) was manufacturing watches for Auricoste towards the end.
Very interesting. I'd like to hear the rest of the story. Why no mention of Genender ownership? Like they skipped that over
and went right to the current brand owner.