http://www.0024watchworld.com/00-24-news/item/513-rolex-opens-new-facility#sigProGalleria3a46f66d85
In addition to Biel/Bienne, Rolex has three sites in Geneva. The site in Plan-les-Ouates hosts the development and manufacture of cases and bracelets, the gold foundry and the quality control for materials. The Rolex headquarter is located in Acacias: management, communications, sales and after-sales, and also research and development; moreover, here are the watches assembled from the components delivered by other sites. In Chêne-Bourg dials are developed and manufactured; jewellery and gem-setting activities are also housed there.