
Heimdallr HMSX11
A homage of the Seiko Tuna
Price not listed yet
- Size
- Width not listed yet
- Movement
- Not listed yet
- Look
- Not compared mark by mark yetFollows the SBDX014
Compare with another homage
No shop links yet.
Homages of the Seiko Tuna you can buy
Against the Seiko
49.4Seiko Tuna SBBN047
40 mm placeholderHeimdallr HMSX11Width unknown for one or both watches. The 40 mm placeholder does not show their true relative size. Photo proportions stay unchanged. Perspective and lug length can differ.
Seiko Tuna SBBN047 photo: SBBN047. Heimdallr HMSX11 photo: Heimdallr 1KM Tuna (HMSX11 class), lume triangle bezel, black dial.
The Seiko drawn is the SBBN047. The HMSX11 follows the SBDX014, so compare shape and size here.
Black shroud
Not compared yet.
Dive bezel
Not compared yet.
Triangle at 12
Not compared yet.
Large round plots
Not compared yet.
Day and date at 3
Not compared yet.
Crown at 4
Not compared yet.
Seiko left, HMSX11 right. Case width is unknown for one or more images. The crop and grid use a 40 mm reference case, so their physical size is unknown.
Everything else
What owners report1 report on one topic
What owners report
Written reviews. Each covers one watch, so read them as things to check rather than a verdict.
From reviews1 report
The owner says the monobloc case avoids a helium escape valve; they found the bezel stiff and difficult to turn.
Written review on seikoparts.wordpress.com, 4 Sep 2023
More from Heimdallr4 more on Bewrist
Beside other Seiko Tuna homagesThis watch and 4 more of its look, to scale
- Heimdallr HMSX11
This watch
- Addiesdive MY-H5
about £112 $149, seen 2 Oct47.5 mm
- Steeldive SD1975
about £120 $160, seen 2 Oct47.5 mm
- Steeldive SD1975S
about £165 $219.99, seen 2 Oct47.5 mm
- Heimdallr Titanium Tuna
Price not listed yet
Drawn to scale by listed case width.
SourcesThe 2 pages this record was built from
- Heimdallr HMSX11 Tuna 1000m Diving Watchseikoparts.wordpress.com, 2 Oct
- Heimdallr Black PVD Tuna Can Watchheimdallrwatch.com, 2 Oct







