One of the newest addition's to Lum-Tec's notorious Combat B Series; the B45 features a tactical, military aesthetic with a reliable swiss movement in a GMT format. Like all Lum-Tec time pieces the B45 features MDV luminous technology for unrivaled visibility in almost any lighting.Features:Assembled by hand in Ohio43mm 316L Surgical grade Stainless SteelTitanium Carbide gunmetal PVD hard coating22mm Lug width200 meters of water resistanceSwiss Ronda 515.24H movement (GMT format)Anti-shock movement mounting systemCurved sapphire with military-grade inner AR coatingThreaded solid case backThreaded crown with double diamond seals.High tech Viton gasketsTwo military style straps included: One black and one tan with gunmetal PVD hardwareMDV luminous Technology custom-developed grade X1 Swiss 208LE (vintage radium color with high luminous reactivity) on dial and handsLifetime free battery replacement, seal cleaning, and pressure testingLimited and numbered series of 500 worldwide