Review of the MTM Black Seal Xtreme Dive Watch
View the MTM Black Seal photo gallery.
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.
You may remember the MTM Black Seal from an article we did last month on extreme dive watches. The most notable feature is the fact that it's completely waterproof. What's the difference between being waterproof and water resistant? The easiest way to explain it is that the MTM Black Seal is completely unambiguous in its claims regarding water and pressure resistance: the Black Seal has been proven in a Swiss laboratory to remain fully intact at the deepest known point on earth, the Mariana Trench, which is about 12,000 meters, or about 39,370 feet.
MTM's secret is the silicon oil filled case which is designed to equalize the pressure exerted on the watch in a way which makes it virtually compression-proof. There are a few other watches out there which make the same claim, but none with quite the unique feature set of the MTM Black Seal:
