I did my first review of an MTM Special Ops watch almost exactly two years ago. If I remember correctly, it was the only MTM model available at the time. MTM is now up to no fewer than eight different models with a very impressive selection of materials, finishes, and features. Although each MTM model is interesting in its own right, the new MTM Black Seal Xtreme Dive Watch stands out as an unusual and impressive feat of engineering.