The Precision of a Rolex Superlative Chronometer is of your buy of −2/+2 seconds on a daily basis – the speed deviation tolerated because of the model for the finished observe is drastically scaled-down than that recognized by COSC for official certification with the motion alone. The Superlative Chronometer standing https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/