The Bronze Field Guide

UNDONE Basecamp Bronze

The UNDONE Basecamp Bronze is a current-production field watch with a cusn8 bronze (copper-tin) case. It measures 40.0 mm across, 15 mm thick, 48 mm lug to lug, and is water resistant to 100 m. Inside is the Seiko NH35 japanese automatic movement, with 41 hours power reserve. Complications: Date. Priced from $375 (approx). Brand origin: Hong Kong.

Bronze field watchesCuSn8FieldDisplay backUnder $500
Reference
–
Type
Field
Price
$375 · approx
Case diameter
40.0 mm
Thickness
15 mm
Lug-to-lug
48 mm
Water resistance
100 m
Weight
–
Origin
Hong Kong
Movement
Japanese automatic
Caliber
Seiko NH35
Power reserve
41 hours
Complications
Date
Ceramic
CuSn8 marine bronze
Colour
–
Hardness
–
Construction
Assembled
Surface treatment
–
Caseback
Bronze
Nickel-free
Not verified (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Canvas strap, ceramic bezel insert
Ceramic bracelet
–
Crystal
Lexan (hardened polycarbonate)
Display back
Yes
Dial
Customisable (blue and others)
Lume
Super-LumiNova
Availability
Offered
Status
Current
High confidence Verified Jul 2026 Source: UNDONE / Serious Watches Maker / listing ↗
Facts are free to cite with a link.
See it in the interactive guide

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Frequently asked questions

What bronze alloy is the UNDONE Basecamp Bronze?

The UNDONE Basecamp Bronze has a cusn8 bronze (copper-tin) 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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