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Chronometer watches - An Overview

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

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