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Investigating the Origins of the Hebdomas 8-Day Watch

August 2, 2021 By Stephen 3 Comments

Last year I published an article on the long and complicated story of Hebdomas, the 8-day watch with the exposed balance wheel. As I discussed then, the watch dates all the way back to 1889 and remains in production to this day, a remarkably long life for a fussy old fashioned design! But I did not then have access to some of the sources of information that inform my research today, and a few readers pointed out some areas I missed. Today I am diving deep into the origins of the Hebdomas, the inventor Irénée Aubry, the watchmaker Arthur Graizely, and the industrialist Otto Schild.

Filed Under: History Tagged With: Arthur Graizely, Hebdomas, Irénée Aubry, La Chaux-de-Fonds, Marvin, Octava, Octo, Otto Schild

Hebdomas: The True Story of the 8-Day Pocket Watch

November 29, 2020 By Stephen 9 Comments

Spend some time looking at old watches and you’re bound to stumble across an unusual watch with an off-center dial, fancy exposed balance, and 8-day power reserve. The dial will likely say “Hebdomas” and “8 Jours” and not much more. Is this some exotic high-end watch or a mass-market pretender? That’s the story I’m telling today!

Filed Under: History Tagged With: 8-day, Aerowatch, Arthur Graizely, Baladin, Bienne, Hebdomas, Kolber, La Chaux-de-Fonds, Otto Schild, Schild & Co, Vincent Calabrese, Xantia

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