The Wristwatch Field Guide

Borealis Navale Bronze

The Borealis Navale Bronze is a current-production diver watch with a cusn8 marine bronze case. It measures 42.0 mm across, 13.4 mm thick, 49.7 mm lug to lug, and is water resistant to 300 m. Inside is the Miyota 9015 automatic movement, with 42h power reserve. Complications: Time only. Brand origin: Portugal.

Titanium, ceramic, and bronze diver watchesBronzeDivers
Reference
–
Type
Diver
Price
–
Case diameter
42.0 mm
Thickness
13.4 mm
Lug-to-lug
49.7 mm
Water resistance
300 m
Weight
–
Origin
Portugal
Movement
Automatic
Caliber
Miyota 9015
Power reserve
42h
Complications
Time only
Material
Bronze
Grade / type
CuSn8 marine bronze
Colour
–
Hardness
–
Construction
Assembled
Surface treatment
–
Caseback
–
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
Strap; signed screw-down crown in CuSn8 bronze
Matching bracelet
–
Crystal
Sapphire
Display back
No
Dial
Blue fumed (multiple dial options)
Lume
C3X1 Super-LumiNova
Availability
Offered
Status
Current
Medium confidence Verified Jul 2026 Source: Retailer / Retailer Maker / listing ↗
Facts are free to cite with a link.
See it in the interactive guide

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Alternatives to the Borealis Navale Bronze

Cronos Bronze CuSn8CronosBronze CuSn8$13642.0 mmDiversame category · same style · similar size · same movement
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Frequently asked questions

What is the case material of the Borealis Navale Bronze?

The Borealis Navale Bronze has a cusn8 marine bronze case. It is recorded at medium confidence pending a maker-stated material.

What size is the Borealis Navale Bronze?

It is 42.0 mm in diameter, 13.4 mm thick, 49.7 mm lug to lug, and water resistant to 300 m.

How much does the Borealis Navale Bronze cost, and is it available?

It is current-production; the guide does not list a price for it.

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