Balance Wheel from Illinois Watch Co. Grade 61 – 18-Size, Model 6, 17 Jewels, c.1900, Serial No. 1521597
A closer look at the balance wheel and Breguet hairspring from an Illinois Grade 61 movement.⠀
Nathan Moore is a historian of American horology, avid watch collector, and the creator of the Pocket Watch Database. He enjoys researching the stories behind the watches manufactured by the American watch factories and the people that built the industry.
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