I think that after Rolex, Omega is the most documented brand out there. Especially in print. Especially with regards to the Speedmaster model, there are already some titles out there that cover this watch in great depth. Not only did Omega publish a specific book on this model by themselves (“The Moon Watch”) over a decade ago, there were also some interesting titles published by others. One of the most in-depth titles so far were the “A Time Capsule” book by Kesaharu Imai and the “Master of Omega” by Alberto Isnardi.
Recently, authors Grégoire Rossier and Anthony Marquié published a new book on the topic. It is called Moonwatch Only and does just that. Covering the Moonwatch in all of its variations. It is being published by WatchPrint and is available in English, French and Italian.