The Precision of a Rolex Superlative Chronometer is of your order of −two/+two seconds every day – the speed deviation tolerated from the brand name for your completed watch is drastically more compact than that accepted by COSC for Formal certification on the movement by yourself. The Superlative Chronometer standing https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
Brands That manufacture chronometer watches No Further a Mystery
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