Montrepassion
Montrepassion
http://www.montrespassion.ch/
Niall's Horological Tools
Niall's Horological Tools
http://members.chello.nl/~coudesluijs/
Pilotwatch
Website die lijkt op de efb
http://www.pilotswatch.nl/
Time Measurement
Eine site der uhrenh@nse
http://www.time-measurement.org/