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Halios Seaforth IV (Titanium)

Halios was founded in Vancouver in 2009 by Jason Lim, one of the original microbrands, and aBlogtoWatch calls the Seaforth perhaps the one microbrand watch that has become an icon. The fourth generation was the first offered in titanium: 40 mm across with a fixed bezel or 41 mm with the rotating one, 12.4 mm thick including the double-domed sapphire and 46.5 mm lug to lug, brushed with polished chamfers on the drilled lugs, and rated to 200 m. The rotating bezel is a 120-click sapphire insert, fully lumed, in dive or 12-hour form. The dials are lacquered or galvanic brass in a range of colours, with Globolight markers and blue C3 X1 lume. Inside is the Sellita SW200-2, a no-date automatic with 65 hours of reserve. It ships on rubber, and a titanium bracelet with a steel clasp is available.

Written 28 September 2026 from Halios and aBlogtoWatch.

All Halios watchesDiver watchesUnder $1,000MicrobrandTitanium bracelet available
Price
$900
Material
Titanium
Grade / type
Titanium (grade undisclosed)
Water resistance
200 m
Type
Diver
Case diameter
40.0 mm
Thickness
12.4 mm
Lug-to-lug
46.5 mm
Origin
Canada
Movement
Automatic
Caliber
Sellita SW200-2
Power reserve
65 h
Complications
Time only
Colour
Grey
Surface treatment
None (brushed)
Finish technology
Natural finish
Caseback
Titanium
Nickel-free
No (steel contact)
Bracelet / strap
Titanium (steel clasp) or rubber
Crystal
Double-domed box sapphire, AR coated
Display back
No
Dial
Blue, plum, yellow, pink, black, and grey colourways
Dial colours
Black Grey Blue Yellow Salmon Purple
Lume
Globolight + Super-LumiNova
Availability
Offered
Status
Current
Not published
Reference, Weight, Hardness, Construction, Matching bracelet
Medium confidence Verified Jul 2026 Source: aBlogtoWatch Maker ↗
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Frequently asked questions

Is the Halios Seaforth IV (Titanium) nickel-free?

No. At least one part that touches the skin is steel, usually the caseback or the clasp, and steel carries nickel, so the guide does not list it as nickel-free.

What grade of titanium is the Halios Seaforth IV (Titanium)?

Titanium, with no grade stated. The caseback is titanium too. The record is at medium confidence, so check the maker's page before relying on it.

What size is the Halios Seaforth IV (Titanium)?

The case is 40 mm across, 12.4 mm thick and 46.5 mm from lug to lug. It is water resistant to 200 m.

How much does the Halios Seaforth IV (Titanium) cost, and is it available?

It is in production, at a list price of $900.

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