Lüm-Tec M Series Chronograph (likely M20 or similar M-series variant)
Tool Watch / Pilot-Style Chronograph · Lüm-Tec (Wiegand Custom Watch, LLC). An American-based microbrand known for high-quality luminescence and rugged assembly.
Period: Modern Tool Watch (2010s-Present). Characterized by its cushion-shaped case and oversized, high-legibility numerals often referred to as 'Panerai-inspired' utility design.
Type
Tool Watch / Pilot-Style Chronograph
Brand
Lüm-Tec (Wiegand Custom Watch, LLC). An American-based microbrand known for high-quality luminescence and rugged assembly.
Movement
Meca-quartz or High-Grade Quartz (likely Miyota OS20 or similar). Features a 24-hour indicator at 3 o'clock, small seconds at 6, and chronograph minutes at 9.
Dimensions
44mm case diameter, 13mm thickness, 50mm lug-to-lug, 24mm lug width. This watch has a significant 'wrist presence' and wears larger due to its square-cushion shape.
Description
The Lüm-Tec M Series is a robust, oversized tool watch designed for maximum visibility. Its cushion-shaped case pays homage to vintage naval diving watches while incorporating modern pilot-style legibility. It is a 'no-nonsense' timepiece intended for outdoor and tactical use.
Key Features
MDV Technology (8-layered Super-LumiNova application), high-contrast 'sandwich-style' appearance, and the signature heavy cushion case with threaded crown guards.
Dial Description
Matte black dial with MDV Technology (Maximum Darkness Visibility) lume. Features large Arabic 12 and 6, baton indices, sword-style hands, and a date window at 4:30.
Case Material
316L Stainless Steel with a heavy brushed/satin finish. Known for durability and resisting glare.
Crystal Type
Sapphire crystal with double-sided clear anti-reflective (AR) coating. Surface scratches visible on the AR coating in the image.
Bezel Details
Fixed brushed stainless steel bezel integrated into the cushion case design.
Crown & Pushers
Large screw-down crown with double diamond sealing system. Flanked by two pump-style chronograph pushers (Start/Stop at 2, Reset at 4).
Bracelet or Strap
Black rubber/FKM anti-static strap with a brushed stainless steel tang buckle. Lüm-Tec typically includes multiple straps with their kits.
Caseback Details
Solid screw-down stainless steel caseback featuring the Lüm-Tec logo, model number, and limited edition sequence (e.g., xxx/500).
Movement Type
Meca-quartz or High-Grade Quartz (likely Miyota OS20 or similar). Features a 24-hour indicator at 3 o'clock, small seconds at 6, and chronograph minutes at 9.
Water Resistance
100 Meters (10 ATM). Suitable for swimming and snorkeling, but the age of the gaskets suggests a pressure test is needed before submerging.
Origin & Provenance
Designed and assembled in Mentor, Ohio, USA. Uses Japanese or Swiss movements (Japanese Miyota in this specific model).
Age Estimate
Circa 2010-2018. The design language and MDV technology logo correspond with the early-to-mid M-series production runs.
Cultural Significance
A prominent example of the 'Microbrand' movement in the mid-2000s that focused on high-spec components (sapphire, heavy steel, intense lume) at mid-market prices.
Condition Notes
Fair to Good. Visible heavy scratching on the bezel and lugs. The AR coating on the sapphire crystal appears to have 'desk diving' marks. Significant wear on the strap-adjacent case areas. Grade: Good (User).
Value Estimate
$250 - $450 USD. Value is dependent on the specific limited edition number and the inclusion of the original box/extra straps (leather and steel).
Care & Maintenance
Requires battery changes every 3-5 years. Ensure the screw-down crown is fully engaged before water exposure. AR coating on the exterior can be polished off if the scratches become distracting.
Similar Watches
Panerai Luminor (the design inspiration), Magrette Moana Pacific, Bell & Ross BR-03 (square aesthetic), or Seiko Prospex Flightmaster.
Interesting Facts
The brand's parent company, Wiegand Custom Watch, produces parts for many other brands; the MDV technology was developed specifically to rival the brightest lume in the industry.