Calibre 2236 Is fitted which has a Syloxi hairspring that is made by Rolex and patented. This silicon hairspring has a patented geometry that ensures the calibre’s regularity in almost any place. Coupled with his colleague Thomas Earnshaw, the pair would create simplified and realistic maritime chronometers. Roger Dubuis has https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/