The Precision of a Rolex Superlative Chronometer is of the order of −2/+two seconds a day – the speed deviation tolerated from the brand for any finished look at is substantially smaller sized than that approved by COSC for official certification of your movement alone. The Superlative Chronometer standing is https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
Brands That manufacture chronometer watches No Further a Mystery
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