The Precision of the Rolex Superlative Chronometer is from the purchase of −2/+2 seconds daily – the rate deviation tolerated through the brand to get a concluded view is noticeably scaled-down than that accepted by COSC for official certification in the motion by yourself. The Superlative Chronometer status is symbolized https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/