Rummaging around the internet I found this fantastic site of Japanese work-wear. The designers all used to work for McCoys and it shows. Great 1930's style workshirts, jeans and chino's with brilliant detail and this leather, an American Railroad worker's jacket, inspired by the most famous railroad man of them all, Neal Cassady.
This is a great find - Bootleggers Reunion - it's a much easier site to navigate than the Workers one I already have a link to but I will still need to employ the help of a Japanese friend come the time I purchase something.