The Precision of the Rolex Superlative Chronometer is in the buy of −two/+2 seconds daily – the rate deviation tolerated through the manufacturer for your finished enjoy is drastically smaller than that acknowledged by COSC for Formal certification in the motion on your own. The Superlative Chronometer standing is symbolized https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/