The Precision of the Rolex Superlative Chronometer is in the purchase of −2/+2 seconds each day – the rate deviation tolerated through the manufacturer for the completed observe is noticeably lesser than that acknowledged by COSC for Formal certification of the movement on your own. The Superlative Chronometer standing is https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/