"ProTek Watches are quickly making a name for themselves in the tactical and sport watch categories with their outstanding quality tritium illuminated timepieces that hit the market about 3 years ago. ProTek brand watches are available in various dive watch and field watch series, including versions with Official United States Marine Corps backing, with quartz or automatic movements. This Kentik collaboration is built around a belief we share: clarity fuels momentum. Specifications: 42mm Carbon Composite Case and 60-Click Dive Timing Bezel, 316L Stainless Steel Embossed Screw Caseback, Steel Screw Crown with Multiple O-Rings, Sapphire Crystal with Antireflective Coating, Water Resistant to 300 Meters (all watches tested in air and water), Genuine Rubber Strap (22mm x 20mm) with Steel Tube Molded into the Rubber for Additional Durability, Dependable Japanese Quartz Citizen/Miyota GM12 Quartz Movement, Swiss self-powered ProGlo illumination system is 100X brighter than conventional lume and glows continuously for 25 years without a need to be ""charged"" by an external light source. " Weight: 73.2 grams. Case Thickness: 13.95mm