Combat B55 Chrono

43mm Forged 316L Surgical grade stainless steel case Military grade Titanium Carbide gunmetal PVD hard coating Heat treated case to increase metal hardness 22mm lug width Bead blast finish for extra durability 13.6mm including domed sapphire 51.5mm lug to lug length with curved lug profile 200 meters water resistance Miyota Japan OS20 Chronograph Precision 60 minute timer Small subdial running seconds hand 24 hour subdial indicator hand 5 year battery life Anti-shock movement mounting system Curved sapphire with military grade AR coating Solid double diamond sealed threaded caseback Threaded crown with double diamond seals Anti-reflective matte gray dial High tech Viton® gaskets  2 military straps with gunmetal PVD hardware: One leather and one heavy grade gray nylon Premium, diamond-cut hands with X1 grade Super-Luminova MDV® Luminous Technology custom developed grade X1 Swiss C3 BL (blue glow) in 30 layers Lifetime free battery replacement, seal cleaning and pressure testing Li