The Bronze Field Guide

Borealis Navale Bronze

The Borealis Navale Bronze is a current-production diver watch with a cusn8 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.

Bronze diver watchesCuSn8Divers
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
Ceramic
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
Ceramic 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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Frequently asked questions

What bronze alloy is the Borealis Navale Bronze?

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

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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