The Wristwatch Field Guide

Heitis Bronze Okeanos Explorer

HEITIS-BRONZE-OKEANOS

The Heitis Bronze Okeanos Explorer is a current-production diver watch with a cusn8 marine bronze case. It measures 42.0 mm across, 13.3 mm thick, 50 mm lug to lug, and is water resistant to 100 m. Inside is the Seiko NH35 automatic movement, with 41 hours power reserve. Complications: Time only. Priced from $479. Brand origin: United States.

Titanium, ceramic, and bronze diver watchesBronzeDiversUnder $5,000
Reference
HEITIS-BRONZE-OKEANOS
Type
Diver
Price
$479
Case diameter
42.0 mm
Thickness
13.3 mm
Lug-to-lug
50 mm
Water resistance
100 m
Weight
–
Origin
United States
Movement
Automatic
Caliber
Seiko NH35
Power reserve
41 hours
Complications
Time only
Material
Bronze
Grade / type
CuSn8 marine bronze
Colour
–
Hardness
–
Construction
Assembled
Surface treatment
–
Caseback
Steel
Nickel-free
No (steel contact)
Bracelet / strap
Leather strap with buckle
Matching bracelet
–
Crystal
Domed sapphire
Display back
No
Dial
Fume sandwich dial, Blue Ombre or Bronze Ombre
Lume
C3 Super-LumiNova
Availability
Offered
Status
Current
High confidence Verified Jul 2026 Source: Heitis / Watch Clicker Maker / listing ↗
Facts are free to cite with a link.
See it in the interactive guide

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Frequently asked questions

Is the Heitis Bronze Okeanos Explorer 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 is the case material of the Heitis Bronze Okeanos Explorer?

The Heitis Bronze Okeanos Explorer has a cusn8 marine bronze case, though its caseback is steel. This is confirmed against the maker spec.

What size is the Heitis Bronze Okeanos Explorer?

It is 42.0 mm in diameter, 13.3 mm thick, 50 mm lug to lug, and water resistant to 100 m.

How much does the Heitis Bronze Okeanos Explorer cost, and is it available?

It is current-production and lists from $479.

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