ZENITH Solidifies its international popularity as the foremost manufacturer of precision chronometers and instruments across many domains. The 3rd significant move occurred in the early 1900’s. The shape in the timekeeping apparatus changed in favor of the wristwatch. The primary chronometer wristwatch movement came in about 1910, and it came https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/