The Precision of a Rolex Superlative Chronometer is with the purchase of −2/+two seconds every day – the speed deviation tolerated from the brand to get a concluded observe is noticeably scaled-down than that recognized by COSC for Formal certification on the movement by yourself. The Superlative Chronometer position is https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/