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Dec. 12, 1972 - Patek Philippe breakthrough in electronic timekeeping: Berne, the Swiss federal capital, became also the nation's watch capital for a day when the most accurate clock in Berne was presented in the showrooms of Guebelin. The timekeeper is an electronic Patek Philippe master clock with a quartz time-base which is linked by radio waves to an atomic clock in the Neuchatel Observatory. On the same occasion, Mr. Robert Daester, a director of Patek-Philippe presented the latest development of his company, a product that can only further enhance the image of the Swiss watch industry; A Patek Philippe quartz table-clock with photo electronic cell. Instead of conventional interchangeable batteries the clock uses a photoelectric cell which converts daylight and artificial light into electric energy which is then stored by built-in accumulators. This Patek-Philippe clock is the only timekeeper of its kind

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Accumulators Accurate Artificial Atomic Batteries Berne Breakthrough Built-in Conventional Converts Electronic Enhance Further Instead Interchangeable Linked Neuchatel Observatory Patek Photoelectric Quartz Showrooms Stored Timekeeper Timekeeping Uses

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