The Precision of the Rolex Superlative Chronometer is with the buy of −2/+2 seconds each day – the speed deviation tolerated from the brand to get a concluded view is noticeably smaller than that accepted by COSC for Formal certification in the motion on your own. The Superlative Chronometer standing https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/