Fun fact: the fact that boron carbide is used and happens to also increase hardness of the watch band is interesting as boron carbide is the most common type of

Fun fact: the fact that boron carbide is used and happens to also increase hardness of the watch band is interesting as boron carbide is the most common type of base ingredient in armor plates for soldiers due to its hardness which results in the ability to fragment rounds before they can achieve any significant penetration. [1] http://en.m.wikipedia.org/wiki/Small_Arms_Protective_Insert http://en.m.wikipedia.org/wiki/Small_Arms_Protective_Insert