I’ve reprinted some of the articles that Roffensian posted on the forums for those of you that do not frequent them. They are very informative and the three that I have posted cover the General Mechanical watch, The Perpetual Calendar and the Minute Repeater. They are beginner articles on how these movements work and what they do.

Very cool stuff… I’ve linked each one individually:

How a Mechanical Watch Works
Minute Repeater
Perpetual Calendar