I will make the same offer here that I made to some others.
Buy me the watch and the gun. I, and some esteemed friends of mine, will evaluate the security protocols it uses. We will prove that it is hackable, show that it is unsafe, show that we can remotely enable/disable it at will without the watch, and show that it can be fired without the watch (e.g. we will show that an attacker can disable your gun without your permission, even if you are authorized). We will then present the findings at a major security conference with whole bunches of press around.
This is a real and legit offer. Just looking for someone to fund the project. We have all the high-tech toys to do all the testing, and the engineers are willing to do this pro-bono, just need the gun and watch.