The Bronze Field Guide

Zelos Helmsman 2 300m Bronze

The Zelos Helmsman 2 300m Bronze is a current-production diver watch with a cusn8 marine bronze case. It measures 42.0 mm across, 13.5 mm thick, 48.5 mm lug to lug, and is water resistant to 300 m. Inside is the Seiko NH35 japanese automatic movement, with 41 hours power reserve. Complications: Date. Priced from $649. Brand origin: Singapore.

Bronze diver watchesCuSn8Skin-safe backDivers
Reference
–
Type
Diver
Price
$649
Case diameter
42.0 mm
Thickness
13.5 mm
Lug-to-lug
48.5 mm
Water resistance
300 m
Weight
–
Origin
Singapore
Movement
Japanese automatic
Caliber
Seiko NH35
Power reserve
41 hours
Complications
Date
Ceramic
CuSn8 marine bronze
Colour
–
Hardness
–
Construction
Assembled
Surface treatment
–
Caseback
Steel
Nickel-free
No (steel contact)
Bracelet / strap
Horween leather and natural rubber straps
Ceramic bracelet
–
Crystal
Sapphire
Display back
No
Dial
Black, blue, meteorite
Lume
BGW9 Super-LumiNova
Availability
Offered
Status
Current (between batches)
Medium confidence Verified Jul 2026 Source: Zelos Watches Maker / listing ↗
Facts are free to cite with a link.
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Frequently asked questions

Is the Zelos Helmsman 2 300m Bronze nickel-free?

No. At least one part that touches the skin is nickel-bearing steel (commonly the caseback or clasp), so the guide does not mark it nickel-free.

What bronze alloy is the Zelos Helmsman 2 300m Bronze?

The Zelos Helmsman 2 300m Bronze has a cusn8 marine bronze case, though its caseback is steel. It is recorded at medium confidence pending a maker-stated alloy.

What size is the Zelos Helmsman 2 300m Bronze?

It is 42.0 mm in diameter, 13.5 mm thick, 48.5 mm lug to lug, and water resistant to 300 m.

How much does the Zelos Helmsman 2 300m Bronze cost, and is it available?

It is current-production and lists from $649.

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