The Precision of a Rolex Superlative Chronometer is of the buy of −two/+2 seconds each day – the rate deviation tolerated by the brand for your concluded watch is drastically scaled-down than that approved by COSC for Formal certification of the motion by yourself. The Superlative Chronometer position is symbolized https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/