Calibre 2236 Is fitted having a Syloxi hairspring that is produced by Rolex and patented. This silicon hairspring incorporates a patented geometry that assures the calibre’s regularity in any posture. Ming did not just slap the movement inside a situation and contact it every day. The actions were overhauled, up-to-date, https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/