Posted by UPDATE, FEB. 2018: It turns out that the site below contains conclusions about bezels that are in dispute. Please read the rebuttal to those conclusions from the authors of Moonwatch Only here.
I get a lot of questions about Grails, other Omega 1045s, and Lemania 5100s, but I must confess I know very little about them compared to their older sibling family of 1040s. But now there is a great online resource for the most iconic of the 1045s. A fellow collector has created a website devoted to reference 376.0822, the watch Chuck Maddox made famous: http://www.omegaholygrail.com/
Please go check out the site, it is beautifully designed and lays out what collectors should know in a logical, straightforward manner.