Calibre 2236 Is equipped that has a Syloxi hairspring that is produced by Rolex and patented. This silicon hairspring includes a patented geometry that makes sure the calibre’s regularity in almost any position. Coupled with his colleague Thomas Earnshaw, the pair would build simplified and useful maritime chronometers. Permit’s conclusion https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/