The Wristwatch Field Guide

UNDONE Basecamp Bronze

The UNDONE Basecamp Bronze is a current-production field watch with a cusn8 marine bronze case. It is priced under the $567 median for the category. The caseback is open, so the movement is visible.

All UNDONE watchesExotic-material field watchesBronzeDisplay backUnder $5,000
Price
$375
Material
Bronze
Grade / type
CuSn8 marine bronze
Water resistance
100 m
Type
Field
Case diameter
40.0 mm
Thickness
15 mm
Lug-to-lug
48 mm
Origin
Hong Kong
Movement
Japanese automatic
Caliber
Seiko NH35
Power reserve
41 hours
Complications
Date
Construction
Assembled
Caseback
Bronze
Nickel-free
Not verified (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Canvas strap, ceramic bezel insert
Crystal
Lexan (hardened polycarbonate)
Display back
Yes
Dial
Customisable (blue and others)
Dial colours
Blue
Lume
Super-LumiNova
Availability
Offered
Status
Current
Not published
Reference, Weight, Colour, Hardness, Surface treatment, Matching bracelet
High confidence Verified Jul 2026 Source: UNDONE / Serious Watches
Facts are free to cite with a link.
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Frequently asked questions

What is the case material of the UNDONE Basecamp Bronze?

The UNDONE Basecamp Bronze has a cusn8 marine bronze case with a bronze caseback. This is confirmed against the maker spec.

What size is the UNDONE Basecamp Bronze?

It is 40.0 mm in diameter, 15 mm thick, 48 mm lug to lug, and water resistant to 100 m.

How much does the UNDONE Basecamp Bronze cost, and is it available?

It is current-production and lists from $375.

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