1780 - Worldtimer
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1780 - Rouzier & Melley.
A double-sided pocket watch with time indication of 53 different timezones is assigned to Rouzier & Melley. It was built in Geneva in 1780 as one of the first watches of this type.
1880 - Sir Sandford Fleming - "Cosmic Time".
In 1880 Sir Sandford Fleming (known for the introduction of universal time and time zones) commissioned London watchmakers to construct a pocket watch indicating the times of 24 zones on one dial. This is how "Cosmic Time" was born, which is considered to be the prototype of Worldtimer.
1930 - Louis Cottier.
The watchmaker Louis Cottier constructed The Worldtimer, with a central display of hours and minutes and a 24-hour rotating disc (as we know it today) in 1930.
Cottier also designed watches for customers as Baszanger, Vacheron Constantin, Patek Philippe, Rolex and Agassiz. A solution based on his idea has become a watchmaking canon and is still used today in many watches.
1951 - Tissot Navigator
Tissot Navigator was founded in 1951:
Notifier: Tomasz Jakubas
Other records: Timeline of Watchmaking Innovations
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