Lüm-Tec M Series Chronograph (likely M1, M3, or M17 variants)
Tool/Pilot Chronograph · Lüm-Tec (Wiegand Custom Watch, LLC); American-based microbrand known for high-tier enthusiast tool watches and proprietary lume.
Period: Modern Tool Watch (2000s-present); characterized by oversized 'Cushion' case aesthetics and high-visibility military-inspired design.
Type
Tool/Pilot Chronograph
Brand
Lüm-Tec (Wiegand Custom Watch, LLC); American-based microbrand known for high-tier enthusiast tool watches and proprietary lume.
Movement
Meca-Quartz or Quartz Chronograph (likely Miyota OS series); features a central chronograph seconds hand, 24-hour subdial, and small seconds.
Dimensions
Case diameter: 44mm; Thickness: 13-14mm; Lug-to-lug: 50mm; Lug width: 24mm. It wears large due to the cushion shape.
Description
A quintessential American microbrand tool watch, the Lüm-Tec M Series features a bold cushion-shaped case that provides significant wrist presence. It is designed for maximum legibility in extreme low-light conditions using the brand's signature MDV lume application. The watch blends military functionality with a rugged, modern construction that appeals to collectors of 'built-like-a-tank' timepieces.
Key Features
MDV (Maximum Darkness Visibility) lume technology; Limited edition numbering (usually 1/100 to 1/500); iconic cushion case shape.
Dial Description
Matte black dial with 'MDV Technology' (Maximum Darkness Visibility). Features oversized Arabic numerals at 12 and 6, sword hands, three subdials (small seconds at 9, 24-hour at 3, chrono minutes at 6), and a date window between 4 and 5.
Case Material
316L Stainless Steel with a brushed finish; known for its rugged 'beater' appeal.
Crystal Type
Sapphire crystal with double-sided anti-reflective (AR) coating; top surface appears to have visible wear or smudging.
Bezel Details
Fixed brushed stainless steel bezel; integrated into the cushion case design.
Crown & Pushers
Large screw-down crown with double gaskets and Lüm-Tec logo; flanked by two pump-style chronograph pushers and integrated crown guards.
Bracelet or Strap
Custom molded black anti-static rubber strap with 'LÜM-TEC' branding; typically secured with a heavy-duty brushed tang buckle.
Caseback Details
Solid screw-down stainless steel caseback; typically engraved with model number, serial (out of a limited run), and water resistance rating.
Movement Type
Meca-Quartz or Quartz Chronograph (likely Miyota OS series); features a central chronograph seconds hand, 24-hour subdial, and small seconds.
Water Resistance
Rated at 100 meters (10 ATM); suitable for swimming and snorkeling but not recommended for professional diving.
Origin & Provenance
Designed and assembled in Ohio, USA; uses Japanese (Miyota) quartz movements.
Age Estimate
Circa 2008-2015; early generation of the M-Chronograph series.
Cultural Significance
A pioneer in the 'Microbrand' movement of the late 2000s; helped popularize the use of high-performance lume as a primary selling point for boutique watches.
Condition Notes
Good condition with signs of regular use. Noticeable scuffs on the brushed bezel and surface marks on the AR coating of the crystal. Strap shows some dust/detritus typical of silicone/rubber.
Value Estimate
$300 - $550 USD on the secondary market depending on the specific limited edition number and inclusion of original box/extra straps (Lüm-Tec often included leather and steel options).
Care & Maintenance
Battery changes every 2-3 years; check gaskets every 2 years to maintain water resistance; clean rubber strap with mild soapy water.
Similar Watches
Panerai Luminor (the high-end luxury inspiration for cushion cases); Magrette Regattare; Bell & Ross BR-03 (square alternative).
Interesting Facts
Every Lüm-Tec watch is part of a limited, numbered production run. The company started by providing custom lume work for other brands before launching their own celebrated lines.