Heimdallr · Factory brand · China

Heimdallr Titanium Tuna Can

In production · Diver

Design reference: Seiko Tuna

Heimdallr Titanium Tuna Can with grey dial and orange bezel on orange rubber strap
Photo: Heimdallr
  • Heimdallr Titanium Tuna Can with grey dial and orange bezel on black rubber strap
  • Heimdallr Titanium Tuna Can with blue dial and blue bezel on blue rubber strap
  • Heimdallr Titanium Tuna Can with black dial and black bezel on black rubber strap
From $189
  • Hangzhou 2565A
  • Sapphire crystal
  • 200 m water resistance

Movement

Type
Automatic
Tier
Entry
Complications
Date
Frequency
—
Power reserve
—
Hacking
—
Accuracy (factory)
—

Case

Diameter
—
Lug to lug
47 mm
Thickness
14.5 mm
Lug width
22 mm
Material
Titanium (Grade 3)
Hardening
—
Water resistance
200 m
Crown
—
Case back
Solid
Bezel
Unidirectional, aluminum insert

Crystal & dial

Crystal
Sapphire
Shape
—
Anti-reflective
Yes (side not stated)
Lume
Japan lume (type not stated)

Bracelet

Bracelet
Not offered

Straps

Strap 1
Rubber, Tropic-style rubber strap with titanium buckle

Weight

Head only
—
On bracelet
—
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
AllRubber strapStreet189 USD$1892026-10-23link

Variants

NameDialBezelConfiguration
Grey, orange strapgrey (textured)Orange and grey aluminium insertOrange rubber strap
Grey, black strapgrey (textured)Orange and grey aluminium insertBlack rubber strap
Blueblue (textured)Blue aluminium insertBlue rubber strap
Blackblack (textured)Black aluminium insertBlack rubber strap

About this entry

73% of key specs known. Missing: case diameter, weight, hardening, crown.

Grade 3 titanium Seiko Tuna-style shrouded diver (listed since November 2021). Brand specs: titanium Grade 3 case and case back, "47x47mm (with crown)" (diameter without crown not stated, so it is left blank), 47mm lug-to-lug, 14.5mm, 22mm lugs, unidirectional 360-degree bezel with an aluminium insert ("it is normal for the bezel colour to fade"), sapphire with AR coating (side not stated), textured dial, rubber strap with titanium buckle, 200m. Lume: the spec block says only "Japan Lume", while an infographic says "Swiss Super Luminous", so the type is not recorded. Movement: the spec block names both a "Hangzhou 2565A" and a "Japan NH35A Automatic Movement, 6 o'clock date"; both are date-only NH35-type calibers and the photos show the date at 6, so the Hangzhou 2565A named first (as on Heimdallr's other current listings) is recorded and earlier pieces may have the Seiko NH35A. The solid case back is engraved "Automatic movement, 100% Titanium, 200M/660FT, Sapphire crystal"; crown type is not stated. Insert colours are from the photos. $189 (crossed-out $398) for every version; the blue dial was sold out on 2026-10-23. Recorded separately from the steel HMSG11 Tuna Can (hmsg11-tuna-can). Weight not stated. No independent review found.

Last verified: 2026-10-23. Edit or correct this entry.

Sources