![Bonhams : Patek Philippe. A rare integrated Electronic Master Clock System with independent minute and seconds comparators in a five-piece towerCirca 1975 Bonhams : Patek Philippe. A rare integrated Electronic Master Clock System with independent minute and seconds comparators in a five-piece towerCirca 1975](https://images1.bonhams.com/image?src=Images/live/2009-05/07/94442679-1-1.jpg&width=640&height=480&autosizefit=1)
Bonhams : Patek Philippe. A rare integrated Electronic Master Clock System with independent minute and seconds comparators in a five-piece towerCirca 1975
![[Patek Philippe] Master clock from a nuclear power station, 1977. Patek was once a leader in master clock systems, supplying the United Nations and even Rolex. : r/Watches [Patek Philippe] Master clock from a nuclear power station, 1977. Patek was once a leader in master clock systems, supplying the United Nations and even Rolex. : r/Watches](https://i.redd.it/l960v4h6df481.jpg)
[Patek Philippe] Master clock from a nuclear power station, 1977. Patek was once a leader in master clock systems, supplying the United Nations and even Rolex. : r/Watches
![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 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](https://l450v.alamy.com/450v/e10hxy/dec-12-1972-patek-philippe-breakthrough-in-electronic-timekeeping-e10hxy.jpg)
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
![File:Patek Philippe & Hewlett Packard Atomic Clock (circa 1960s) - M.S. Rau Antiques (taken on 2015-03-25 13.19.29 by @DrGarcia).jpg - Wikimedia Commons File:Patek Philippe & Hewlett Packard Atomic Clock (circa 1960s) - M.S. Rau Antiques (taken on 2015-03-25 13.19.29 by @DrGarcia).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Patek_Philippe_%26_Hewlett_Packard_Atomic_Clock_%28circa_1960s%29_-_M.S._Rau_Antiques_%28taken_on_2015-03-25_13.19.29_by_%40DrGarcia%29.jpg/640px-Patek_Philippe_%26_Hewlett_Packard_Atomic_Clock_%28circa_1960s%29_-_M.S._Rau_Antiques_%28taken_on_2015-03-25_13.19.29_by_%40DrGarcia%29.jpg)
File:Patek Philippe & Hewlett Packard Atomic Clock (circa 1960s) - M.S. Rau Antiques (taken on 2015-03-25 13.19.29 by @DrGarcia).jpg - Wikimedia Commons
![Patek Philippe] Master clock from a nuclear power station, 1977. Patek was once a leader in master clock systems, supplying the United Nations and even Rolex. : r/Watches Patek Philippe] Master clock from a nuclear power station, 1977. Patek was once a leader in master clock systems, supplying the United Nations and even Rolex. : r/Watches](https://i.redd.it/2g9uis0zke581.jpg)