The Titanium Field Guide

Thorn Titanium Sub Diver (NH35, no GMT)

SHY037-NH35

The Thorn Titanium Sub Diver (NH35, no GMT) is a current-production diver watch with a titanium (grade undisclosed) case. At 300 g it sits among the heavier diver watches in the guide, and is priced well under the $1,299 median for the category. It ships on a matching titanium bracelet rather than a strap.

All Thorn watchesWatch diver watchesUnder $500MicrobrandLightest, rankedOn a titanium bracelet
Price
$254.32
Material
Titanium
Grade / type
Titanium (grade undisclosed)
Weight
300 g (with bracelet)
Water resistance
300 m
Reference
SHY037-NH35
Type
Diver
Case diameter
40.5 mm
Thickness
14 mm
Lug-to-lug
48 mm
Origin
China
Movement
Automatic, three-hand diver (no date, no GMT function)
Caliber
Seiko NH35
Complications
Time only
Colour
Grey
Surface treatment
None
Finish technology
Natural finish
Caseback
Titanium
Nickel-free
Unconfirmed (clasp or buckle material not confirmed)
Bracelet / strap
Titanium bracelet, quick-release links, no tools required
Matching bracelet
Standard
Crystal
Sapphire, AR coating
Display back
No
Dial
Black, or green bezel with black dial (colourway varies by stock)
Dial colours
Black Green
Lume
C3 green luminous, hands and markers
Availability
Offered
Status
Current. Thorn uses the model code SHY037 for two functionally different watches sharing the same 40.5mm x 48mm x 14mm titanium case: this three-hand NH35 automatic diver with a plain lume-dot ceramic bezel and no date or GMT, and a separate NH34A GMT / helium-valve version already catalogued as thorn-shy037-helium-gmt-titanium-ti. The two are independently confirmed on the maker's own storefront and its Heimdallr storefront mirror, both stating NH35 with no GMT function, against the other record's citation which independently states NH34A Automatic GMT with date and dual time zone.
Not published
Power reserve, Hardness, Construction
Medium confidence Verified Sep 2026 Source: Thorn (maker) / Thorn (Heimdallr storefront mirror)
Facts are free to cite with a link.
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Frequently asked questions

What is the case material of the Thorn Titanium Sub Diver (NH35, no GMT)?

The Thorn Titanium Sub Diver (NH35, no GMT) has a titanium (grade undisclosed) case with a titanium caseback. It is recorded at medium confidence pending a maker-stated material.

What size is the Thorn Titanium Sub Diver (NH35, no GMT)?

It is 40.5 mm in diameter, 14 mm thick, 48 mm lug to lug, and water resistant to 300 m.

How much does the Thorn Titanium Sub Diver (NH35, no GMT) weigh?

About 300 g (w/ bracelet).

How much does the Thorn Titanium Sub Diver (NH35, no GMT) cost, and is it available?

It is current-production and lists from $254.32.

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