You May make use with the links under to skip all around, or maintain scrolling to study with the whole post: Ming didn't just slap the movement within a case and call it each day. The movements were overhauled, up to date, and refinished by La Joux Perret in La-Chaux-de-Fonds. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/