very beautiful. Newt, i don't think there is a definite, shutter speed dial, more than likely, it was along the lines of two twists equals 30 seconds...

http://3hands.tistory.com/category/exhibition

link ^ shows he's made several cameras and their respective photos, although i'm just guessing and may be incorrect.

also, i don't think you can buy it, or maybe for several thousands you can, (tens of thousands?) seeing as the watch it self is 800, at least the heartbeat 1 was... and that was only part of the camera.