The Precision of a Rolex Superlative Chronometer is from the get of −2/+two seconds a day – the rate deviation tolerated via the brand for the finished enjoy is appreciably scaled-down than that acknowledged by COSC for Formal certification of your movement alone. The Superlative Chronometer position is symbolized by https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/