Of course in the American "Contemporary Horology" scene, Ildico (the distribution arm of Westime) is the famous distributor of brands such as Richard Mille, URWERK, Greubel Forsey and others. They do a fantastic job with their brands. At MB&F, we work without a distributor, keeping everything in-house. In North America, I handle the opening of new retailers, sales training, public relations, advertising (the extremely little bit that we do), events, etc. Max takes care of all this for the rest of the world - hence why he works 16+ hours/day.
While each approach has its pros and cons, we are lucky enough to have a communication strategy that works for us and the personnel to see it through (Max and myself). Keeping everything under our umbrella allows us to have tight control over how our company is represented from the factory to the press and all the way through to the retail store.