The chisel tip version makes a great dive knife. No point to skewer yourself on or ventilate a drysuit with.(A real important point for us cold water divers!)Sheath leaves a bit to be desired, snaps don't work so great with gloves on, I made up a rubber band with a pull tab out of an old motorcycle tube that seems to do the trick.
Most "dive" knives won't take an edge worth s***, they tend to use 300 series stainless to resist rust. The Buck will actually cut stuff! I allways do a good freshwater soak on all my gear, so the Buck looks as new as possible after a few hundred salt water dives.
I just picked up a "spare" on the auction site. I'd call it a good solid product that works the way it should.