Some 6 years ago Seiko introduced a fascinating sub brand - Izul. As far as I know it only contained four models - SDAA001, 003, 005 and 007.
Forevsta made a report about it here when it was launched but I have not heard / seen anything about it since. 
From: http://forums.watchuseek.com/f21/whats-your-seiko-grail-738329-7.html
Any owners here or anyone who has handled one? I am really fascinated by the SDAA001 and SDAA007 models with rotating cases, one orientation for the time, another to use the chrono. Making it a bullhead, too. And a Spring Drive chrono is a cool thing in its own right, irrespective of the case 
Would be curious to find out more...