Calibre 2236 Is fitted that has a Syloxi hairspring that is made by Rolex and patented. This silicon hairspring includes a patented geometry that guarantees the calibre’s regularity in any posture. Regardless of whether for personal satisfaction or being an investment conclusion, COSC-accredited watches distinguish on their own from the https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/