Vitra's Tripod Clock is an elegant table clock made of brass and acrylic glass. The watch is a collector's item and has a high quality quartz movement with a brass colored dial. The Tripod Clock is part of the series of Desk Clocks designed by George Nelson between the years 1947 to 1953. The goal of the series was to introduce modern design into American homes. All watches are clearly inspired by the growing economic prosperity and strong faith in the future that permeated the United States during the fifties. The product includes a 1.5 volt battery.