Omega has developed many innovative watches. The most important successfull models are Constellation, Seamaster, Speedmaster and De Ville. In public perception Omega has been able to place some of it's products extremely effective in advertising. In addition well-known personalities like Michael Schumacher, George Clooney, Cindy Crawford or Nicole Kidman appear as so called Omega Ambassadors (the brand's andvertising mediums). Even multiple special exemplars have thereby been devoted to Michael Schumacher.