Lüm-Tec · Microbrand · United States
Lüm-Tec Combat B64
Movement
- Caliber
- Miyota 0S21
- Type
- Quartz
- Tier
- Mid
- Complications
- Hours, Minutes, Chronograph
- Frequency
- n/a
- Power reserve
- n/a
- Hacking
- n/a
- Accuracy (factory)
- -20 / +20 s/month
- Modifications
- Anti-shock movement mounting system
Case
- Diameter
- 43 mm
- Lug to lug
- 51.5 mm
- Thickness
- 13.6 mm
- Lug width
- 22 mm
- Material
- Steel (316L)
- Hardening
- Titanium carbide PVD hard coating, on case
- Water resistance
- 200 m
- Crown
- Screw-down
- Case back
- Solid, screw-down
- Bezel
- Fixed
- Finishing
- Bead-blasted, with a PVD anti-fingerprint coating
- Colour coating
- Gunmetal (titanium carbide PVD)
Crystal & dial
- Crystal
- Sapphire
- Shape
- Domed
- Anti-reflective
- Inner
- Lume
- Super-LumiNova X1 C3 BL, blue glow (MDV Luminous Technology, 30 layers); X1 hands
Bracelet
- Bracelet
- —
Straps
- Strap 1
- NATO, Heavy-grade grey pass-through nylon military strap with gunmetal PVD hardware
- Strap 2
- Leather, Leather military strap with gunmetal PVD hardware
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
Prices
| Variant | Configuration | Type | Price | USD | As of | Source |
|---|---|---|---|---|---|---|
| All | — | Msrp | 545 USD | $545 | 2026-10-24 | link |
About this entry
87% of key specs known. Missing: weight, bracelet offered.
Sold as "B64 Chronograph"; the dial reads "Combat B" and the store lists it in its Combat B series, so it is named like the other Combat B references. Limited and numbered series of 500. Quartz chronograph: Miyota "OS21J" with a 60-minute timer and a 24-hour sub-dial, 5-year battery. No date window is visible in the brand's photos, so the date is recorded as absent. Brand specs: 43mm, 13.6mm including the domed sapphire, 51.5mm lug-to-lug, 22mm lugs, 200 m, gunmetal titanium carbide PVD hard coating (no hardness given), solid threaded caseback. The spec list says "military-grade AR coating" and the description puts the DLC anti- reflective coating on the inside of the sapphire (recorded as inner). The spec list calls the dial "anti- reflective matte gray"; it looks black in the photos. The brand calls the lume "X1 Swiss C3 BL (blue glow)"; the lume photo glows blue. MDV Luminous Technology, per the brand: the dial is printed with over 30 layers of Super-LumiNova over a chemically coated reflective base so the glow is directed out of the front rather than lost into the dial, and RC Tritec in Switzerland tested and verified its dials as top performers. Brand case claims: forged 316L (forging said to raise fatigue strength 37% over a cast case), heat treatment "to increase metal hardness" (not recorded as hardening: no surface treatment or hardness is given), bead-blast finish said to improve scratch resistance by 8-10%, PVD anti-fingerprint coating, double Viton gaskets in the threaded crown and caseback, tested to 30% beyond the 200 m rating. The lugs curve down steeply; the brand says the 51.5mm lug-to-lug wears like a 46-47mm one. Fixed knurled (coin-edge) bezel and no crown guards, from the brand's photos. The included straps are pass-through nylon military straps that loop through both spring bars. No bracelet comes with the watch; Lüm-Tec sells Combat B bracelets separately as accessories. Weight is not published. Listing created November 2024.
Last verified: 2026-10-25. Edit or correct this entry.
Sources
- Lüm-Tec, B64 Chronograph (product page, specifications and price) accessed 2026-10-25