
Rdunae 6105-8000 diver
A homage of the Seiko 6105 diver
about £157 $209.90, seen 2 Oct
At rdunae.com, sold out on 2 Oct.
- Size
- 41 mm across, the same width as the Seiko
- Movement
- Japan NH35, automatic. Sapphire crystal
- Look
- Not compared mark by mark yetFollows the 6105-8000
Compare with another homage
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Against the Seiko
41Seiko 6105 diver SPB317J1
41Rdunae 6105-8000 diverPhotos use listed case widths and automatic case-edge readings. The readings have not been manually audited. Photo proportions stay unchanged. Perspective and lug length can differ.
Seiko 6105 diver SPB317J1 photo: SPB317J1. Rdunae 6105-8000 diver photo: black · steel · black rubber.
The Seiko drawn is the SPB317J1. The 6105-8000 diver follows the 6105-8000, so compare shape and size here.
Turtle cushion case
Not compared yet.
Coin-edge bezel
Not compared yet.
Crown at 4
Not compared yet.
Triangle with a pearl at 12
Not compared yet.
Double bar at 12
Not compared yet.
Rectangular lume plots
Not compared yet.
Date at 4:30
Not compared yet.
Ribbed rubber strap
Not compared yet.
Seiko left, 6105-8000 diver right.
Everything else
Every spec13 listed, each with where it came from
Every spec we have
From Rdunae's own pages. Each figure links to where it was found.
- Case width
- 41 mmrdunae.com, 2 Oct
- Lug to lug
- 48 mmrdunae.com, 2 Oct
- Thickness
- 13 mmrdunae.com, 2 Oct
- Lug width
- 19 mmrdunae.com, 2 Oct
- Movement type
- Automaticrdunae.com, 2 Oct
- Movement calibre
- Japan NH35rdunae.com, 2 Oct
- Case material
- 316L stainless steelrdunae.com, 2 Oct
- Crystal
- Sapphire, clear ARrdunae.com, 2 Oct
- Water resistance
- 150 mrdunae.com, 2 Oct
- Bezel
- Aluminum with luminous glass piprdunae.com, 2 Oct
- Clasp
- Stainless steel pin bucklerdunae.com, 2 Oct
- Lume
- Swiss C1rdunae.com, 2 Oct
- Weight
- 72.4 gcjeastwd.blogspot.com, 2 Oct
The movementJapan NH35, in plain words
The movement, in plain words
Rdunae lists the Japan NH35 for the 6105-8000 diver. It is an automatic, so wearing it winds it.
On your wrist41 mm across, 13 mm thick, on a wrist your size
How it sits on your wrist
Set your wrist circumference to compare the 41 mm case with a schematic wrist. The ellipse estimates wrist width and shape. It cannot predict your fit.
17.0 cm6.7 in around
This wrist model is about 56 mm across. The case spans 73% of that estimated width. The lug span ends 4.1 mm inside each model edge.
Wrap a strip of paper round your wrist just below the bone, mark where it meets and measure it.
How tall it stands
The side view uses listed dimensions. Case shape and lug curve are schematic.
Side views to scale against other Seiko 6105 diver homages.
- Rdunae R2X13 mm
- Rdunae 6105-8000 diver13 mm
- Steeldive SD197013.5 mm
- Watchdives WD610513.5 mm
- Addiesdive AD211714 mm
- Proxima PX1683-BY15.8 mm
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
Owner reports rotor interference with the caseback and returned the tested R2. Later correspondence anticipated a revised batch, but this pass found no proof that current stock resolves it. Owner measured the watch head at 72.4g and preferred its fit to the larger 6105-8110 design.
More photographs3 from makers, sellers and owners
More photographs

black · steel · black rubber
rdunae.com
black · steel · black rubber
rdunae.com
black · steel · black rubber
rdunae.com
More from Rdunae3 more on Bewrist
Beside other Seiko 6105 diver homagesThis watch and 5 more of its look, to scale
- Rdunae 6105-8000 diver
This watch
41 mm
- Addiesdive AD2104
about £109 $145, seen 2 Oct
- Addiesdive AD2117
about £97 $129.99, seen 2 Oct43.8 mm
- Rdunae R2X
about £157 $209.90, seen 2 Oct44 mm
- Steeldive SD1970
about £104 $138, seen 2 Oct43.8 mm
- Heimdallr Turtle 6105
Price not listed yet
Drawn to scale by listed case width.
SourcesThe 2 pages this record was built from
- Rdunae R2 Turtlerdunae.com, 2 Oct
- in my view ...: Rdunae - the progenitor of the Willardcjeastwd.blogspot.com, 2 Oct






