Combat B70 Automatic

From Lum-Tec Watches

The proven, ultra-tough Combat B series has been continually evolved and improved since our original Combat B1 model first debuted in 2007. These watches have been battle tested in real military applications, tested in the harshest environments from scorching deserts to freezing mountaintops. The Combat B series emerges unscathed and begging for more. This long time favorite is always ready to go and not only looks great, its extremely comfortable on your wrist, supremely legible, undeniably accurate and its anti-shock capability is well proven in the field. Trusted by pilots, ground soldiers, snipers, mountain climbers and people that just appreciate a watch that is engineered from the ground up in USA to perform at the highest level. Specs: 43mm case width, forged 316L Surgical grade Stainless Steel 13.6mm case thickness including domed sapphire 51.5mm lug-to-lug 22mm lug width Heat-treated case to increase metal hardness Bead blast finish for extra durability Anti-fingerprint coating 200 meters water resistance Precision tuned 28,800 BPH Miyota 9015 Japan automatic movement with hand winding and hack feature Regulated in 6 positions in-house Anti-shock movement mounting system Curved sapphire with military grade inner AR coating Threaded 316L Stainless Steel caseback Sapphire caseback window Threaded crown with double Viton® seals High tech Viton® gaskets 2 heavy-grade nylon military straps with bead blasted hardware: One blue and one gray Matte 2376C Blue dial with A grade BGW9 Super-Luminova Premium, diamond-cut hands with A grade BGW9 Super-Luminova MDV luminous technology on dial and hands Lifetime free timing adjustment, seal cleaning and pressure testing Limited and numbered series of 500 worldwide 2-year limited warranty Designed, assembled by hand and fully tested in Ohio The Combat B cases are made from 316L Surgical grade stainless steel. We use forged construction to re-align the metal grain structure to increase fatigue strength by 37% over a typical cast steel case. This also eliminates voids and porosity in the metal, allowing for the finest possible finishing level. A heat treatment is done to improve the stability of the metal during the forging process and to harden the metal surface after finishing. Bead blast finish creates micro work hardened surface to improve scratch and ding resistance by 8-10% over brushed or polished finishes. It leaves a perfectly flawless smooth satin finish. We add a physical vapor deposited anti-fingerprint coating to fill any microscopic pores from the bead blasting in and leave an even smoother finish that prevents oily smudges and fingerprints on the case. The thick, slightly domed, Hytrel mounted sapphire creates a wider angle reflection which makes the dial easier to see without harsh reflection. Clarity is further enhanced by the military grade anti-reflective DLC coating applied to the inside of the sapphire. Silicone lubricated, double Viton gasket seals are in the crown and the tightly sealed, threaded caseback to resist saltwater, chemicals and extreme hot and cold environments. Our sealing system has been improved by over 200% since our original Combat B1 model and tested to exceed our 200 meter depth rating by 30% ensuring complete sealing in not only water depths but in all environments. The case is designed with lugs that curve downward, wrapping around your wrist. The 51.5mm lug length may sound long but this length is from the steep downward curve, they will wrap even a very small wrist without feeling large on the wrist, wearing more like a 46-47mm lug length effectively. This is one of the reasons our Combat B case is so well loved by thousands of owners around the world. Extreme comfort. You can barely feel it on the wrist. Our anti-shock movement mounting system allows the movement to absorb impacts ensuring reliability remains even after an accidental drop on the ground or a solid bang against a wall. Two custom grade, thick nylon straps are included. The st