Calibre 2236 Is fitted using a Syloxi hairspring that is made by Rolex and patented. This silicon hairspring includes a patented geometry that assures the calibre’s regularity in any position. Each and every of your respective watches is roofed as many as one hundred fifty% of the insured price (as https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/