
Deep Blue NATO Diver 300M
A homage of the Seiko SKX diver
Price not listed yet
- Size
- 44 mm across, 1.5 mm wider than the Seiko
- Movement
- NH36 hacking edition, automatic. Sapphire crystal
- Look
- Not compared mark by mark yet
- Gives it away
- 1.5 mm wider than the Seiko, 44 mm against 42.5 mm
Compare with another homage
No shop links yet.
Against the Seiko
42.5Seiko SKX diver SKX007
44Deep Blue NATO Diver 300MPhotos 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 SKX diver SKX007 photo: SKX007. Deep Blue NATO Diver 300M photo: black · striped fabric NATO.
The Seiko drawn is the SKX007.
What gives it away
- 1.5 mm wider than the Seiko, 44 mm against 42.5 mm
Black dive bezel
Not compared yet.
Triangle at 12
Not compared yet.
Round plots and a pill
Not compared yet.
Sword hands
Not compared yet.
Day and date at 3
Not compared yet.
Crown at 4
Not compared yet.
Jubilee bracelet
Not compared yet.
Seiko left, NATO Diver 300M right.
Everything else
Every spec4 listed, each with where it came from
Every spec we have
As listed. Each figure links to where it was found.
For the NATO Diver 300M, 44 mm generation version.
- Case width
- 44 mmcalibremag.ca, 31 Aug 2017
- Movement calibre
- NH36 hacking editioncalibremag.ca, 31 Aug 2017
- Crystal
- Sapphirecalibremag.ca, 31 Aug 2017
- Water resistance
- 300 mcalibremag.ca, 31 Aug 2017
The movementNH36 hacking edition, in plain words
The movement, in plain words
Deep Blue lists the NH36 hacking edition for the NATO Diver 300M. It is an automatic, so wearing it winds it.
On your wrist44 mm across, on a wrist your size
How it sits on your wrist
Set your wrist circumference to compare the 44 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 78% of that estimated width. Lug to lug is unknown, so no lug extent is drawn. Thickness is unknown, so no case height is drawn.
Wrap a strip of paper round your wrist just below the bone, mark where it meets and measure it.
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
Reviewer bought the watch; orange and black examples were shown. He reported about +2 seconds/day during his use and upgraded the included nylon straps to rubber and bracelet options. The article cited an original launch price of USD 299; this is historical, not a current offer.
Written review on calibremag.ca, 31 Aug 2017
More photographs3 from makers, sellers and owners
More photographs

grey · black · black rubber
deepbluewatches.com
orange · dark blue appearing dial · orange rubber · steel bracelet, may be another version
calibremag.ca
black · striped fabric NATO
enjoygloriousdays.com
Beside other Seiko SKX diver homagesThis watch and 4 more of its look, to scale
- Deep Blue NATO Diver 300M
This watch
44 mm
- Heimdallr SKX007
42 mm
Price not listed yet
- Islander ISL-01
43 mm
Price not listed yet
- Islander ISL-02
43 mm
Price not listed yet
- Steeldive SD1996
41.2 mm
Price not listed yet
Drawn to scale by listed case width.
SourcesThe page this record was built from
- Deep Blue NATO Diver 300M reviewcalibremag.ca, 2 Oct



