Calibre 2236 Is fitted by using a Syloxi hairspring that is produced by Rolex and patented. This silicon hairspring includes a patented geometry that guarantees the calibre’s regularity in almost any situation. Irrespective of whether for particular person fulfillment or as an expenditure determination, COSC-accredited watches distinguish on their own https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/