Thanks, but these drivers have some age, probably made before the rush to exploit offshore labour. They do have "Swiss" embossed on them.
I did check the official website and the speakers featured look nothing like these.
I have, since my original posting, found there is an ACR/Fostex connection.
I've seen Seas drivers with the ACR Swiss stickeron the magnet. I would think that the ACR fullrange drivers are the Fostex of the "japan" era: when the Fostex sticker had "Fostex corp Japan". Not any more now on most models.