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Chronometer watches Secrets

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The automated COSC-Qualified PF441 chronometer motion that this Parmigiani common runs on provides a 55-hour electric power reserve, owing to its oscillating mass, that's in delicately engraved gold, and may be admired throughout the sapphire crystal caseback. And admire it you'll, because it shows a few of the very best https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/

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