The Precision of a Rolex Superlative Chronometer is with the purchase of −2/+2 seconds every day – the rate deviation tolerated through the brand name for just a completed observe is appreciably scaled-down than that recognized by COSC for Formal certification in the movement by itself. The Superlative Chronometer standing https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/