Isobrite Valor Midsize Blue T100 Tritium Illuminated Watch Blue. 5mm in diameter this Swiss made midsize watch features ultra bright T100 tritium markers. The watch features 28 ultra bright T100 tritium markers that will glow for many decades. A combination of green and orange tritium markers makes it incredibly easy to tell the time in any lighting environment. To ensure uninterrupted service a reliable Swiss made Ronda 505 quartz movement powers the watch. The movement also features a legible date display between 4:00 and 5:00. Constructed out of carbon fiber reinforced polycarbonate this lightweight watch weighs in at only 3 ounces. The dial is well protected by a scratch-resistant sapphire crystal with an anti-reflective coating. When your adventure involves water this watch is ready to accompany you diving down to 200 meters. While in the depths of the sea the unidirectional ratcheting diver bezel with a tritium marker will help you keep track of elapsed bottom time. Specifications for Isobrite Valor Midsize T100 Tritium Illuminated Watch: Manufacturer: Isobrite Application: All Round Gender: Male Dial Color: Blue Band/Strap Color: Black Case Color: Black Case Material: 316L Surgical-Quality Stainless Steel Case Diameter: 39.5 mm Bezel Finish: Tritium Band/Strap Material: Polyurethane Wrist Band Type: Strap Illumination Type: Tritium Package Contents: Isobrite Valor Midsize T100 Tritium Illuminated Watch Isobrite Valor Midsize Blue T100 Tritium Illuminated Watch - ISO353-PU