This watch was first of its kind in 1960. The HF’s 36,000 vph speed created a momentum that shielded the movement from temperature-induced errors. While heat once made metals lag and cold made them rush, this watch's high frequency kept timing rock-solid. It was the first mass-produced piece to offer this immunity, ensuring chronometer precision in any climate. It essentially outran the physical weather-sensitivity that had plagued mechanical watches for centuries. The watch runs.
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