The Precision of a Rolex Superlative Chronometer is of the order of −two/+2 seconds every day – the rate deviation tolerated from the manufacturer for a completed check out is appreciably more compact than that approved by COSC for Formal certification of your movement by yourself. The Superlative Chronometer standing https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/
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