The Precision of the Rolex Superlative Chronometer is with the purchase of −2/+2 seconds a day – the speed deviation tolerated from the brand for any finished view is noticeably smaller than that recognized by COSC for official certification from the motion by yourself. The Superlative Chronometer standing is symbolized https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/