The Wristwatch Field Guide

Heimdallr H1 Bronze Tuna

HEIMDALLR-H1-BRONZE

The Heimdallr H1 Bronze Tuna is a current-production diver watch with a aluminium bronze case. It measures 47.0 mm across, 14.5 mm thick, 44.8 mm lug to lug, 160 g, and is water resistant to 300 m. Inside is the Seiko NH35A automatic movement, with 41 hours power reserve. Complications: Time only. Priced from $199. Brand origin: China.

Titanium, ceramic, and bronze diver watchesBronzeDiversUnder $5,000
Reference
HEIMDALLR-H1-BRONZE
Type
Diver
Price
$199
Case diameter
47.0 mm
Thickness
14.5 mm
Lug-to-lug
44.8 mm
Water resistance
300 m
Weight
160 g (with bracelet)
Origin
China
Movement
Automatic
Caliber
Seiko NH35A
Power reserve
41 hours
Complications
Time only
Material
Bronze
Grade / type
Aluminium bronze
Colour
–
Hardness
–
Construction
Assembled
Surface treatment
–
Caseback
–
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
Solid stainless steel bracelet
Matching bracelet
–
Crystal
Sapphire
Display back
No
Dial
–
Lume
C3 Super-LumiNova
Availability
Offered
Status
Current
Medium confidence Verified Jul 2026 Source: Heimdallr H1 Bronze listing Maker / listing ↗
Facts are free to cite with a link.
See it in the interactive guide

Similar titanium, ceramic, and bronze watches

SteeldiveSD1975S Bronze Tuna Diver$18947.5 mm15 mm thick103 gDiversame category · same style · similar price · similar sizeThorn T012 Titanium NH34 GMT DiverThornT012 Titanium NH34 GMT Diver$23947.0 mm14.8 mm thickDiversame category · similar price · similar size · similar thicknessTandorio 50 Fathoms CuSn8 Bronze DiverTandorio50 Fathoms CuSn8 Bronze Diver$16140.0 mm14 mm thickDiversame category · same style · similar price · similar thicknessTandorio CuSn8 Solid Bronze TurtleTandorioCuSn8 Solid Bronze Turtle$16244.0 mm14 mm thickDiversame category · same style · similar price · similar thickness
TandorioTD232K Solid Bronze Sub Diver$16240.0 mm13.5 mm thickDiversame category · same style · similar price · similar thickness
TandorioTD239M CuSn8 Bronze Willard Captain Diver$16444.0 mm14 mm thickDiversame category · same style · similar price · similar thickness
CorgeutDiver Bronze$16940.0 mm14 mm thickDiversame category · same style · similar price · similar thicknessSteeldive SD1953S Bronze SubSteeldiveSD1953S Bronze Sub$16941.0 mm13.5 mm thickDiversame category · same style · similar price · similar thickness

Alternatives to the Heimdallr H1 Bronze Tuna

Baltany Bronze Diver S3016BaltanyBronze Diver S3016$19944.0 mm14.2 mm thickDiversame category · same style · similar price · similar sizeSteeldive SD1968S Bronze MM300 MonoblocSteeldiveSD1968S Bronze MM300 Monobloc$19944.0 mm17.2 mm thickDiversame category · same style · similar price · similar size
San MartinSN047 Bronze Diver$22744.0 mm13.5 mm thickDiversame category · same style · similar price · similar sizeAragon Enforcer Titanium 9015AragonEnforcer Titanium 9015$22944.0 mm16 mm thick181 gDiversame category · same style · similar price · similar size
CronosL6006 Bronze Turtle Diver$22944.0 mmDiversame category · same style · similar price · similar size
ThornT019 Vintage Titanium Automatic Diver$22945.0 mmDiversame category · same style · similar price · similar size

More titanium, ceramic, and bronze watches from Heimdallr

Heimdallr Titanium TunaHeimdallrTitanium Tuna$18947.0 mmDiverHeimdallr Titanium SKX DiverHeimdallrTitanium SKX Diver$17942.0 mmDiverHeimdallr Bronze 6105HeimdallrBronze 6105$19545.0 mm13.3 mm thickDiver
HeimdallrBronze MM300$15944.0 mm15.5 mm thickDiver
HeimdallrBronze Shark Sub$18940.5 mm13.7 mm thickDiver
HeimdallrBronze SKX007$18942.0 mm13 mm thickDiver

Frequently asked questions

What is the case material of the Heimdallr H1 Bronze Tuna?

The Heimdallr H1 Bronze Tuna has a aluminium bronze case. It is recorded at medium confidence pending a maker-stated material.

What size is the Heimdallr H1 Bronze Tuna?

It is 47.0 mm in diameter, 14.5 mm thick, 44.8 mm lug to lug, and water resistant to 300 m.

How much does the Heimdallr H1 Bronze Tuna weigh?

About 160 g (w/ bracelet).

How much does the Heimdallr H1 Bronze Tuna cost, and is it available?

It is current-production and lists from $199.

All titanium, ceramic, and bronze Heimdallr watches · Titanium, ceramic, and bronze diver watches · All 1389 watches

Learn: Titanium vs Ceramic · Ceramized Titanium