For many years, just about the only Swiss mechanical chronograph watches costing less than several thousand dollars ran on one movement: the trusty, old 7750. Or some variation of it. Or some copy of ...

IN this book some examples of plane motions of machines are worked out. The title well describes the scope and contents of the work and the very modest aims of the author. Velocity Diagrams. Their ...

True revolutionary innovation in the mechanical watch space doesn’t come around all that often. It seems that every few years, some brand will come up with a new form of escapement promising greater ...