Calibre 2236 Is fitted by using a Syloxi hairspring that is made by Rolex and patented. This silicon hairspring incorporates a patented geometry that guarantees the calibre’s regularity in almost any position. Several of their styles are presented in equally quartz and automated versions, Normally at distinct price factors. A https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/