1820 - Dual Time Zone


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1820 - Dual Time Zone

Jean-François Bautte precursor of time measurement for travellers and the founder of the watchmaking company (it was absorbed by Girard-Perregaux in 1906) constructed a pocket watch equipped with second time indications in 1820. Each display can be set independently.


 

 

In 1860, with the advent of the Industrial Revolution, Girard-Perregaux developed a pocket watch showing the local time in the five largest cities in the world: San Francisco, Montevideo, Rio de Janeiro, New York and Paris. 


Reported by: Tomasz Jakubas

Other records: Timeline of Watchmaking Innovations


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