A dive watch with a proper military pedigree, the Blancpain Fifty Fathoms is the true progenitor of the modern dive watch, setting the record for the first use of a unidirectional rotating bezel. The large case and relatively sharp dial made the replica watches more readable, with a large rotating bezel to mark potential times. A more important point is the water resistance, which alone is popular with diving enthusiasts and military diving soldiers.

The Blancpain Fifty Fathoms replica watches are adept at using a pot lid shaped sapphire crystal to give a one-to-one reproduction of the watch size and non-slip texture. The logo on the replica watch is even more vividly reproduced and three-dimensional. Even from the side and the thickness and curvature of the watch, it is comparable to the original.