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Lum-Tec M54 Bronze

Archive · used only

The Lum-Tec M54 Bronze was a 44 mm bronze watch with a Seiko NH35 automatic movement. It is no longer made, so this page is a reference for buying one used.

All Lum-Tec watchesOther watchesUnder $1,000MicrobrandLightest, ranked
Price
$790
Material
Bronze
Grade / type
CuSn8 bronze
Weight
150 g (with strap)
Water resistance
300 m
Type
Other
Case diameter
44.0 mm
Thickness
14.5 mm
Origin
United States
Movement
Japanese automatic
Caliber
Seiko NH35
Power reserve
41 hours
Complications
Date
Construction
Assembled
Finish technology
Natural finish
Nickel-free
Unconfirmed (contact-point materials not all confirmed)
Bracelet / strap
Leather and rubber straps
Crystal
Sapphire
Display back
No
Dial
Brown
Dial colours
Brown
Lume
MDV 8-layer lume
Availability
No longer offered
Status
Archive, limited to 200 pieces
Not published
Reference, Lug-to-lug, Colour, Hardness, Surface treatment, Caseback, Matching bracelet
Medium confidence Verified Jul 2026 Source: Princeton Watches / Blade HQ
Facts are free to cite with a link.
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Frequently asked questions

What is the case of the Lum-Tec M54 Bronze made of?

The case is cusn8 bronze. The guide has not yet confirmed it on the maker's own page.

What size is the Lum-Tec M54 Bronze?

The case is 44 mm across and 14.5 mm thick. It is water resistant to 300 m.

How much does the Lum-Tec M54 Bronze weigh?

About 150 g on its strap.

How much does the Lum-Tec M54 Bronze cost, and is it available?

It is no longer made, so the only way to buy one is used. Its list price when it was in production was $790.

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