Calibre 2236 Is fitted using a Syloxi hairspring that is made by Rolex and patented. This silicon hairspring has a patented geometry that assures the calibre’s regularity in almost any placement. No matter if for personal pleasure or being an expenditure final decision, COSC-accredited watches distinguish them selves in the https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/