The Titanium Field Guide

Halios Seaforth IV (Titanium)

The Halios Seaforth IV (Titanium) is a current-production diver watch with a Titanium (grade undisclosed) case. It measures 40.0 mm across, 12.4 mm thick, 46.5 mm lug to lug, and is water resistant to 200 m. Inside is the Sellita SW200-1 automatic movement, with ~38 h power reserve. Complications: Time only. Priced from $900 (approx). Brand origin: Canada.

Titanium diver watchesUnder $1,000
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Reference–
TypeDiver
Price$900 · approx
Case diameter40.0 mm
Thickness12.4 mm
Lug-to-lug46.5 mm
Water resistance200 m
Weight–
OriginCanada
MovementAutomatic
CaliberSellita SW200-1
Power reserve~38 h
ComplicationsTime only
TitaniumTitanium (grade undisclosed)
Surface treatmentNone (brushed)
Nickel-freeYes
Bracelet / strapTitanium (steel clasp) or rubber
CrystalDouble-domed box sapphire, AR coated
Display backNo
DialMultiple (40mm fixed / 41mm rotating bezel)
LumeGlobolight + Super-LumiNova
AvailabilityOffered
StatusCurrent
Medium confidence Verified 2026-06-21 Source: aBlogtoWatch Maker / listing ↗
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