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Leave it to Jacob & Co. to add bling to a watch’s intricate inner workings.
The New York-based watch and jewelry maker has unveiled a new, iced-out tourbillon featuring what it claims is the first diamond-set balance wheel in modern horology.
Swiss and French watchmakers experimented with setting diamonds directly onto balance wheels in the 1820s and 1830s, but it soon became clear that the extra weight from gems compromised chronometric performance. As a…
