Water resistance is tested by immersing the watch completely in distilled water containing a wetting agent of 1% by weight and under the prescribed atmospheric pressure for at least 5 minutes. To be qualified, the watch must not show any evidence of leakage.
The water resistance of BALL Watches ranges by collection. The Trainmaster and Conductor collections begin at 30 meters. The Engineer and Fireman collections are 100 meters. The Engineer Master collection ranges from 100 meters to 300 meters. And finally, the Engineer Hydrocarbon collection begins at 300 meters and goes up to 3,000 meters for the Engineer Hydrocarbon DeepQUEST. The exceptional water resistance of this model has been made possible in particular by machining the entire case out of a single block onto which the bezel is directly screwed, the strengthening of the crown seals and an anti-reflective sapphire crystal with a thickness of 5.3 mm. The Engineer Hydrocarbon collection also boasts a special crown protection system to further ensure water resistance in rough environments.
