Calibre 2236 Is fitted that has a Syloxi hairspring that is made by Rolex and patented. This silicon hairspring incorporates a patented geometry that assures the calibre’s regularity in almost any place. There you have it, five brands that have performed an enormous part in the development on the chronograph. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
Not Known Facts About chronometer watches
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