This 1st gen Triple Calendar Moon Phase is for sale online (click thumbnails for larger photos):
(https://i.postimg.cc/0KmgjnQH/473186908-10163002649129868-5134024120091310466-n.jpg) (https://postimg.cc/0KmgjnQH) (https://i.postimg.cc/ctcmFt5L/473086517-10163002649119868-1049344734690350208-n.jpg) (https://postimg.cc/ctcmFt5L)
The serial number has seven digits. I thought Zodiacs of this timeframe only had six digits!!? Can anyone clarify? Also, the listing shows the year of production as 1960. Based on some recent excellent info posted on this forum, I'm assuming the listing is simply incorrect.
I wrote you back on FB in the vintage watches group. Cheers !!!