ZENITH Solidifies its Intercontinental standing as being the leading manufacturer of precision chronometers and devices throughout numerous domains. Ming failed to just slap the movement within a situation and connect with it on a daily basis. The movements had been overhauled, updated, and refinished by La Joux Perret in La-Chaux-de-Fonds. https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/