Guido Zumbühl

Juwelier Kurz AG engages in the production and sale of jewelry and jewels, as well as watches. Its collections include diamonds, solitaires, colored gem stones, pearls, gold, fancy, diamonds, denim diamonds, multi-size diamonds, cosmopolitan diamonds, eternity diamonds, skinny, classic sport, paradise, pallina, and iconic flower. The company was founded by Armin Kurz in 1948 and is headquartered in Lucerne, Switzerland.

Bucherer AG engages in the manufacture and sale of watches and jewelry. It distributes its products under the Audemars Piguet, Baume & Mercier, Blancpain, Breguet, Calvin Klein, Carl F. Bucherer, Cartier, Chopard, Girard-Perregaux, Glashütte Original, Gucci, IWC Schaffhausen, Jaeger-LeCoultre, A. Lange & Söhne, Longines, Mido, Montblanc, H. Moser & Cie, Nomos Glashütte, Oris, Panerai, Piaget, Rado, Roger Dubuis, Rolex, Swarovski, Swatch, TAGHeuer, Tissot, Tudor, and Vacheron Constantin brands. The company was founded by Carl-Friedrich Bucherer and Luise Bucherer in 1888 and is headquartered in Lucerne, Switzerland.