HeroesofHorology.com

400-Day Clock Gallery – More Info

Kundo Kieninger & Obergfell Anniversary Clock with Key, Dome , Papers Germany

Clock as found on ebay

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1863 Vintage Elgin German S Haller Anniversary Clock

Clock as found on ebay

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1951 Kundo Kieninger & Obergfell West Germany

Clock as found on ebay

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1911 Gustav Becker 400 Day Anniversary Clock

Clock as found on ebay

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Kundo Kieninger & Obergfell Anniversary Clock with Key, Dome , Papers Germany

Clock as found on ebay

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Jahresuhrenfabrik Schatz 49 400 Day Anniversary Clock

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Jahresuhrenfabrik 400 day anniversary Clock

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Kienzle 400 Day Anniversary Miniature Clock

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Charles O Terwilliger, Jr.

Charles Terwilliger’s contribution to horology can best be described as innovative and colorful. Not only did he revolutionize the accuracy of the 400-Day Clock, his research and clock reproductions continue to impact the world of clock collecting to this day.

HeroesofHorology.com was established in 2025 to honor the memory of Charles O Terwilliger, Jr and the company he established, Horolovar, and to fulfill the dream of his son, Robert Terwilliger, who wished for this biography to continue on after he himself passed away.