The Wristwatch Field Guide

Lum-Tec M83 Bronze

The Lum-Tec M83 Bronze is a current-production diver watch with a cusn8 marine bronze case. It is priced close to the $1,195 median for the category. The caseback is open, so the movement is visible.

All Lum-Tec watchesExotic-material diver watchesBronzeDiversDisplay backUnder $5,000
Price
$1,095
Material
Bronze
Grade / type
CuSn8 marine bronze
Water resistance
200 m
Type
Diver
Case diameter
44.0 mm
Thickness
13.8 mm
Lug-to-lug
51 mm
Origin
United States
Movement
Automatic
Caliber
Sellita SW200
Power reserve
38 hours
Complications
Time only
Construction
Assembled
Caseback
Sapphire
Nickel-free
Not verified (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Brown suede plus molded rubber strap; no bronze bracelet.
Crystal
Curved low-dome sapphire, military-grade AR
Display back
Yes
Dial
Black (representative)
Dial colours
Black
Lume
Lum-Tec MDV Super-LumiNova
Availability
Offered
Status
Current (between batches), limited series of 100
Not published
Reference, Weight, Colour, Hardness, Surface treatment, Matching bracelet
High confidence Verified Jul 2026 Source: Lum-Tec (maker) / Sportique
Facts are free to cite with a link.
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Frequently asked questions

What is the case material of the Lum-Tec M83 Bronze?

The Lum-Tec M83 Bronze has a cusn8 marine bronze case with a sapphire caseback. This is confirmed against the maker spec.

What size is the Lum-Tec M83 Bronze?

It is 44.0 mm in diameter, 13.8 mm thick, 51 mm lug to lug, and water resistant to 200 m.

How much does the Lum-Tec M83 Bronze cost, and is it available?

It is current-production and lists from $1,095.

All exotic-material Lum-Tec watches · Exotic-material diver watches · All 2,006 watches

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