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Everything about Understanding the complex world of chronometers

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The automated COSC-Qualified PF441 chronometer motion that this Parmigiani traditional operates on provides a 55-hour power reserve, owing to its oscillating mass, which happens to be in delicately engraved gold, and can be admired throughout the sapphire crystal caseback. And admire it you will, since it shows some of the https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/

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