<https://quillandpad.com/2014/07/11/urwerk-and-the-gustave-sandoz-clock-that-doesnt-tell-the-time/#primaryimage>
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"Dial of the Gustave Sandoz Regulator"
<https://quillandpad.com/2014/07/11/urwerk-and-the-gustave-sandoz-clock-that-doesnt-tell-the-time/>