Dolvik strives to create a vessel that has a timeless quality. The boat designs are based on classics that were built in the early- to mid-twentieth century, many of which still grace the waters of the world today.     While most manufacturers have switched to cheaper materials (fiber-glass and plastics) and fast, production-line methods, Dolvik still builds each boat by hand, using "real" materials. The finest woods, luxurious leather and carefully designed chrome and brass fittings go into the making of one of the world's finest power boats.