.links
.Amsterdam watch company
relation

.Antiquorum
auction house

.chrono24
international watch trade site

.De Rikketik
Dutch collectors assiosiation of watches and clocks

.horlogeforum
Dutch watch info site

.Horlogepagina
Ditch watch info page

.Lijfering&Ros
relation

.ninanet
very good high-end watch site

.The hour lounge
Vacheron constantin web site

.The Purist
Vacheron Constantin discussion forum

.Vacheron Constantin
The Vacheron Constantin website

.W.J. van der Tuin
watchmaker own workshop