The Precision of the Rolex Superlative Chronometer is on the order of −two/+two seconds daily – the rate deviation tolerated by the manufacturer for any completed check out is substantially lesser than that approved by COSC for Formal certification of your motion on your own. The Superlative Chronometer status is https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
Chronometer watches - An Overview
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