Calibre 2236 Is equipped with a Syloxi hairspring that is made by Rolex and patented. This silicon hairspring has a patented geometry that makes certain the calibre’s regularity in any situation. The 3rd major phase transpired while in the early 1900’s. The form in the timekeeping apparatus transformed in favor https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/