The Precision of a Rolex Superlative Chronometer is of the buy of −2/+two seconds per day – the speed deviation tolerated from the manufacturer for your finished watch is drastically more compact than that accepted by COSC for Formal certification from the movement by yourself. The Superlative Chronometer position is https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
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