I think these books will probably pale in comparison to the definitive speedmaster reference text scheduled to come out later this year.
No comparison, the Imai book was great given the time at which it was written. ps. the first copies are still scheduled in May
Here's the link to the original thread started about a year ago now: http://omegaforums.net/threads/moonwatch-only-new-book.5043/
Where could I find this book and what do you think about this one compared to the moonwatch only book? Is the moonwatch only book only contain the moonwatch or could I see more details about the other ones such as the automatic speedmasters, speedmaster mark X/X.X, etc?