De Rikketik
de Rikketik
http://www.derikketik.nl/
Europese Ver. Horlogemakers
Europese Ver. Horlogemakers
http://www.ceahr.org/
Fed. Zwitserse Horlogeindustrie
Fed. Zwitserse Horlogeindustrie
http://www.fhs.ch/
Nat. Org. Horloges & Klokken
National association of watch and clock collectors, nawcc school of horology, national watch and clock museum, library and research center, gift shop, collecting, school, library, clocks, watches
http://www.nawcc.org/