This was my last purchase of 2009. It is a gold plated Zodiac Olympos from the 1960's:
The dial is faceted into quarters - which kinda reflects the Zodiac logo.
The movement is marked 70 - 72, and as it has a date it is a Zodiac 72.
gives this as 'The calibre is based on the manual wind calibre AS 1687/1688.
The automatic mechanism is a joint development of Doxa, Eberhard, Favre-Leuba, Girard-Perregaux, and Zodiac.'
Mine, though, is marked as having only 17J - not 21.
Many thanks for looking!