Two recommendations:
1.
A Journey Through Time - out of print, but sometimes your local Omega Boutique can find one. Also, they generally have a copy on display to use as reference material.
2.
2007 OmegaMania CatalogPurchases made through these links may earn this site a commission from the eBay Partner Network - Back in 2007, Antiquorum and Omega got together to have a massive auction of only Omega watches. The catalog was arranged by model line, and there is a sizable section on Constellations.
I still think Desmond’s Blog is the best place to go for information on specific models within the Constellation line.
Hope this helps,
gatorcpa
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