The watch industry has dramatically consolidated during the 20th century to just a few watch groups. There were waves of consolidation in the 1930s, 1960s, 1970s, 1980s, and 1990s, all of which resulted in a few companies (Swatch Group, Richemont, LVMH, Kering, and so on) controlling most of the Swiss and European watch industry. Similar consolidation occurred in Japan, where Seiko Group and Citizen Holdings own much of the industry, and in America, which is dominated by Movado Group.