Looking at the front panel, we figured out why this is called the Tsunami. Several case manufacturers have put out a wave type front bezel case. Thermaltake takes a go at it as you can see below. The curved bezel is made of aluminum and represents about a third of the total weight of the case (which by the way is a mere six kg.)
FULL STORY @ OVERCLOCKERCAFE (http://www.overclockercafe.com/Reviews/cases/Tt_Tsunami/index.html)