Calibre 2236 Is fitted using a Syloxi hairspring that is produced by Rolex and patented. This silicon hairspring contains a patented geometry that assures the calibre’s regularity in almost any position. Together with its magnificent aesthetics, this Breitling Premier Chronograph continues to boast the identical Extraordinary complex knowledge that the https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/