Lüm-Tec M Series Chronograph (likely M1, M16, or M17 series)
Chrono-Pilot / Tool Watch · Lüm-Tec (Parent: Wiegand Custom Watch, LLC). Mid-range American 'Boutique' brand focused on high-visibility tool watches.
Period: Modern Tool Watch (2000s-present) featuring neo-cushion case design inspired by mid-century Italian naval watches with modern tactical finishes.

Type
Chrono-Pilot / Tool Watch
Brand
Lüm-Tec (Parent: Wiegand Custom Watch, LLC). Mid-range American 'Boutique' brand focused on high-visibility tool watches.
Movement
Meca-quartz or Quartz Chronograph (likely Miyota OS20 caliber), featuring standard time, 24-hour subdial, and 60-minute chronograph counter.
Dimensions
Case diameter: 44mm, Thickness: 13-14mm, Lug-to-lug: 50-52mm, Lug width: 24mm. It wears large due to the square cushion corners.
Description
A rugged American-assembled tool watch defined by its 'Maximum Darkness Visibility' lume. The M-series occupies the space between a pilot's watch and a diver, utilizing a beefy cushion case that pays homage to Panerai dimensions while maintaining a distinct tactical aesthetic. This specific example shows heavy honest wear, suggesting its use as a true daily tool.
Key Features
8-layer MDV lume application, cushion-shaped case, 24-hour subdial, and high-contrast 'sandwich-style' indices layout.
Dial Description
Matte black dial with "MDV Technology" (Maximum Darkness Visibility). Features oversized Arabic numerals at 12 and 6, applied baton indices, phantom-tipped sword hands, and three subdials at 3, 6, and 9 o'clock. Date window at 4:30.
Case Material
316L Stainless Steel with a heavily worn brushed finish. Note: Lüm-Tec often uses PVD or Carbide coatings, but this appears to be the raw steel variant.
Crystal Type
Top-grade sapphire crystal with double-sided anti-reflective (AR) coating. Visible scratches suggest the AR coating is scratched or the crystal is mineral glass (non-standard for this model).
Bezel Details
Fixed, wide-profile cushion-shaped bezel in brushed stainless steel without markings.
Crown & Pushers
Screw-down crown with double diamond-cut gaskets; two pump-style chronograph pushers at 2 and 4 o'clock.
Bracelet or Strap
Black anti-static rubber/silicone strap with a brushed stainless steel tang buckle.
Caseback Details
Solid screw-down 316L stainless steel caseback, usually engraved with model numbering and serial sequence.
Movement Type
Meca-quartz or Quartz Chronograph (likely Miyota OS20 caliber), featuring standard time, 24-hour subdial, and 60-minute chronograph counter.
Water Resistance
Rated at 100 meters (330 feet). Suitable for swimming and light snorkeling, provided the screw-down crown is fully secured.
Origin & Provenance
Designed and assembled in Ohio, USA, using Japanese movements (Miyota) and international components.
Age Estimate
Circa 2008-2015 based on the specific M-Series subdial configuration and logo type.
Cultural Significance
A staple of the 'Boutique Brand' movement of the late 2000s, Lüm-Tec helped popularize the 'over-built' American tool watch aesthetic among online watch forums.
Condition Notes
Fair to Poor. The case shows significant scratches and scuffs; the crystal's AR coating appears heavily marred. There is visible dirt/debris at the lug connections and crown. Movement functionality is unverified.
Value Estimate
Market value in current condition: $150 - $250. Mint examples with full kits (box/papers/multiple straps) can reach $400 - $550.
Care & Maintenance
Requires regular cleaning of the rubber strap to prevent cracking; movement requires a battery change every 3-5 years; pressure test every 2 years if used for swimming.
Similar Watches
Panerai Luminor (the design ancestor), Bell & Ross BR-03 (square pilot), Magrette Moana Pacific (cushion case competitor).
Interesting Facts
The 'MDV' lume technology was developed specifically to rival the brightest luminescent paint in the industry, often surpassing major luxury brands in duration and brightness.