Professional divers need watches that remain readable in even the harshest of conditions. The Engineer Master II Diver Chronometer achieves the goal through the usage of 61 self-powered micro gas tubes that glow 100 times brighter than luminous paint. These illuminate the hands, dial elements and internal bezel to ensure night time readability. The watch is equipped with Swiss-made ETA 2836-2 automatic calibre that is certified by Contrôle Officiel Suisse de Chronométres (COSC) – the official Swiss institute that tests chronometers. The timepiece is protected from shock, water penetration and magnetic influences. The rotating, elapsed time bezel is operated through a crown. Additional features include a day display, a date display, screw-in crowns and scratch-resistant sapphire crystal glass with anti-reflective coating.