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Saturday, May 1, 2021

Seiko and the measurement of time


If you still prefer pure mechanical movements then here is the 9SA5 and T0 made to celebrate GS 60th anniversary presented to the HSNY at the end of 2020.



https://www.youtube.com/watch?v=uGd_86i3Zzc








https://grandseikogs9club.com/chronicle-9/horological-society-of-new-york/






Dig deeper with the HSNY:



Jack Forster on the essentials of precision timekeeping.

https://www.youtube.com/watch?v=UM1cRP2JWNk





Roger Smith on the development of a practical watch escapement

https://www.youtube.com/watch?v=nr9PDFAPj8c



More on watch escapements here:

https://www.youtube.com/watch?v=2Vefje8dxzU




Francois-Paul Journe on resonance in watchmaking.

https://www.youtube.com/watch?v=FqLEP3xNb3U



Another description of resonance in horology here: 

https://www.thewatchpages.com/resonance-explained-how-it-works-in-a-watch/





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