Above: Chuck Pippin's kerambit, top; Steve Rollert's "Boxcutter" prototype, middle;
Jeff Crowner's Mini-korambit, closest to watchband
I think maybe the "mini" designation is relative -- see how it compares to a Chuck Pippin kerambit and Steve Rollert's prototype for his "boxcutter" kerambit.
It's a beast -- a quarter-inch thick -- pre 1980's 5160 chromium-steel, Jeff says. The cutting edge is a hair over an inch-and-a-half long, chisel-ground, sharped on the concave curve only, though he will sharpen both edges if you want, and it feels very solid in one's hand. I think you'd be hard pressed to break it unless you were maybe trying to chip granite. It weighs about seven ounces. Looks to me like multiple tempers on the blade, too.
Handle is black Micarta, and the tooled leather sheath is as sturdy as the knife.
This is a silat blade, made by a silat player, and Jeff joins my list of knifemakers who truly know how to work steel.