The Wristwatch Field Guide

Heimdallr Bronze MM300

MM300-BRONZE

The Heimdallr Bronze MM300 is a current-production diver watch with a aluminium bronze case. It is priced well under the $1,195 median for the category.

All Heimdallr watchesExotic-material diver watchesBronzeDiversUnder $5,000
Price
$159
Material
Bronze
Grade / type
Aluminium bronze
Water resistance
300 m
Reference
MM300-BRONZE
Type
Diver
Case diameter
44.0 mm
Thickness
15.5 mm
Lug-to-lug
50 mm
Origin
China
Movement
Automatic
Caliber
Hangzhou 2565A
Complications
Time only
Construction
Assembled
Caseback
Bronze
Nickel-free
Not verified (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Rubber waffle strap or leather strap, 20mm
Crystal
Sapphire
Display back
No
Dial
Black, blue, or green
Dial colours
Black Blue Green
Lume
Swiss C3 Super-LumiNova
Availability
Offered
Status
Current
Not published
Weight, Power reserve, Colour, Hardness, Surface treatment, Matching bracelet
Medium confidence Verified Jul 2026 Source: WR Watches
Facts are free to cite with a link.
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Frequently asked questions

What is the case material of the Heimdallr Bronze MM300?

The Heimdallr Bronze MM300 has a aluminium bronze case with a bronze caseback. It is recorded at medium confidence pending a maker-stated material.

What size is the Heimdallr Bronze MM300?

It is 44.0 mm in diameter, 15.5 mm thick, 50 mm lug to lug, and water resistant to 300 m.

How much does the Heimdallr Bronze MM300 cost, and is it available?

It is current-production and lists from $159.

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