Luigi Oreste Anzaghi as pictured here
When the elderly gentleman in Milan mentioned this to me of this fine Italian music composer, I googled until I found a picture of him wearing it over his sleeve. I was still jet lagged but if I recall hearing correctly, he may have sold him that very watch wearing in the photograph as he was also from Milan!!
It appears that in the 1940's these oversized sub dial flat watches were the norm and to be perfectly honest I have always found them rather appealing, but unfortrunately they trap moisture and dust worse than a watch without a case!!!!
It would be interesting to see how many photographs of men wearing their watch over their sleeve really do exist.