My ETA Ultimate looks pretty close to the gen - the green blob is recessed and it appears to have a clear flat layer above it. The Asian one has the metal ring protruding at least 1mm above the bezel, and the green blob sticking out about .5mm with a ridge across it. Basically my orange one has an innie and the black one has an outtie.
Hmmm...protective blob...I emailed Josh about it, hopefully he'll have a good response.