Movement: Professional Chronograph: Case and dial: solid stainless steel case: 61 mm diameter: Newly developed: Orange Tritnite Luminous tones: Screw down with unique protective cap: Band: Italian made marine canvas Corduva strap: Water resistant: 200 meters. Tritnite is a luminous material developed by Invicta in Switzerland. It is a high quality product that allows hands and markers covered with it to glow for an extended period of time. When exposed to regular daylight, it will hold its glow for about 20 hours.