Which reminds me, there is a typical industry not at all far from Tokyo for hand made garments that has been popular with foreigners for at least 60 years:

Yokosuka souvenir jackets, Dobuita street is the Savile Row equivalent for these garments.
I understand you can order a bespoke version if there's a particular design (or size) you wanted.



I understand they are currently en vogue with the fashion conscious.