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How can I calibrate or verify a chronometer?


If you measure time with a required uncertainty of a few tenths of a second, then a calibration with the speaking clock is perfectly suitable.

InFrance, dial 3699 for the speaking clock. The speaking clock is controlled by LNE-SYRTE, which is tasked by the French national metrology and test laboratory (LNE) with managing the national time and frequency references. Therefore, it can be traced to the national measurement standards.

Measurement FAQ  

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