The most appropriate watch to wear in my 4/4 Sport, from my modest but rare watch collection would be my 1969 Heuer Autavia Panda. Of course I could go for my 5513 Submariner from 1966, but I generally wear my 1972 Datejust, which has been my daily for the last 30 years or so. Whatever your choice it should be a vintage watch for a Morgan jaunt.