The Combat B series has continuously evolved since the original Combat B1 debuted in 2007. These watches have been field tested in military, industrial, and extreme outdoor environments ranging from desert heat to freezing mountain conditions. The Combat B series is engineered for durability, comfort, legibility, accuracy, and proven anti-shock performance.

• 43mm forged 316L surgical grade stainless steel case

• Titanium Carbide gunmetal PVD hard coating

• Heat-treated case for increased surface hardness

• Bead blast finish for improved durability

• 22mm lug width

• 13.6mm thick including domed sapphire

• 51.5mm lug-to-lug with curved lugs for comfort

• 200m water resistance

• Miyota Japan 2105 movement

• Day/date function

• 3-year battery life

• Anti-shock movement mounting system

• Curved sapphire crystal with military-grade AR coating

• Threaded crown and caseback with double Viton seals

• Matte anti-reflective gray dial

• Viton® gaskets resistant to chemicals and temperature extremes

• Includes 2 military straps with gunmetal PVD hardware

• Diamond-cut hands with X1 Super-Luminova

• MDV® Luminous Technology Swiss C3 GL lume in 30 layers

• Lifetime free battery replacement, seal service, and pressure testing

• Limited edition of 500 worldwide

• 2-year limited warranty

• Designed, hand assembled, and tested in Ohio

The forged 316L steel construction increases fatigue strength while reducing internal porosity, allowing for superior finishing and durability. Heat treatment and bead blasting further improve scratch and impact resistance. A PVD anti-fingerprint coating is applied to reduce smudging and improve surface feel.

The slightly domed sapphire crystal is Hytrel-mounted to improve shock resistance and reduce glare. Internal anti-reflective coating improves clarity in bright conditions.

The sealing system uses lubricated double Viton gaskets in both the crown and threaded caseback. The system exceeds the rated 200m depth specification by approximately 30%.

Curved lugs allow the watch to wrap naturally around the wrist despite the larger dimensions, resulting in a surprisingly compact feel during wear.

The anti-shock movement mounting system helps protect timekeeping performance from drops and impacts.

Included heavy-grade military straps are designed for durability, comfort, and security if a springbar fails.

The dial uses over 30 layers of Swiss Super-Luminova applied over a reflective chemical base for maximum luminous efficiency. Performance has been verified by RcTritec Switzerland.

All LÜM-TEC watches are designed and engineered in Ohio from the ground up. Every watch is individually assembled and fully tested by hand.