The Precision of a Rolex Superlative Chronometer is in the buy of −2/+2 seconds every day – the rate deviation tolerated with the brand name for a concluded view is noticeably scaled-down than that accepted by COSC for official certification in the movement by itself. The Superlative Chronometer status is https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/