Calibre 2236 Is fitted by using a Syloxi hairspring that is made by Rolex and patented. This silicon hairspring incorporates a patented geometry that makes certain the calibre’s regularity in any situation. Along with his tiny staff, Ellis searched locally for manufacturers who could make the components to his measurements. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
Chronometer watches Secrets
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