Just like other Ball watches, the Engineer Master II Aviator is equipped with a number of unique features. Readability is essential when it comes to this timepiece. It comes with the biggest gas tubes that Ball has ever produced to keep the hands and dial elements illuminated in the dark. This timepiece is equipped with Swiss-made ETA 2836-2 automatic calibre. A day and date window is positioned at the 3 o'clock mark. Additional functionalities include shock resistance, protection from magnetic influences, screwed-in crown and scratch-resistant sapphire crystal glass with anti-reflective coating.