The Titanium Field GuidePicks of the month

Zelos Hammerhead V3 300M Titanium

Hammerhead V3 Ti

The Zelos Hammerhead V3 300M Titanium is a 44 mm Grade 2 titanium dive watch with a Seiko NH35 automatic movement. The case is surface-hardened, which guards against the scuffs bare titanium picks up.

All Zelos watchesDiver watchesUnder $1,000MicrobrandOn a titanium braceletMicro-adjust bracelet
Price
$529
Material
Titanium
Grade / type
Grade 2
Water resistance
300 m
Reference
Hammerhead V3 Ti
Type
Diver
Case diameter
44.0 mm
Thickness
13 mm
Lug-to-lug
49 mm
Origin
Singapore
Movement
Automatic
Caliber
Seiko NH35
Power reserve
~41 h
Complications
Date
Colour
Grey
Surface treatment
Surface hardened (1200 HV)
Finish technology
Surface hardening
Nickel-free
Unconfirmed (contact-point materials not all confirmed)
Bracelet / strap
Titanium bracelet (quick-adjust)
Matching bracelet
Standard
Micro-adjust clasp
Yes
Crystal
Domed sapphire, inner AR
Display back
No
Dial
Granite-textured (dark grey and other colourways)
Dial colours
Grey
Lume
Super-LumiNova C3 / BGW9
Availability
Offered
Status
Current (between batches)
Not published
Weight, Hardness, Construction, Caseback
High confidence Verified Sep 2026 Source: Zelos (maker) Spec checksGrade Jul 2026Price Sep 2026
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Frequently asked questions

What grade of titanium is the Zelos Hammerhead V3 300M Titanium?

Grade 2, as stated by the maker.

What size is the Zelos Hammerhead V3 300M Titanium?

The case is 44 mm across, 13 mm thick and 49 mm from lug to lug. It is water resistant to 300 m.

How much does the Zelos Hammerhead V3 300M Titanium cost, and is it available?

It is in production, at a list price of $529.

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