People Germany Theodor Ketterer peoplepill id: theodor-kettererTK 18 views today 18 views this weekGerman clockmakerTheodor KettererBiographyListsAlso ViewedListsTheodor Ketterer is in following listsBy work and/or countryNotable German ClockmakersGender:MaleFrom our partnersSponsoredTheodor Ketterer