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Home/Browse/Halios/Seaforth IV
Halios Seaforth IV — Sunburst Blue
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Halios Seaforth IV

DiverMicrobrand

Owners widely praise the Halios Sunburst Blue for its perfect 40mm size, stunning sunburst dial, and excellent lume, with one owner calling it Halios's best effort and a potential "Omega AT killer." The ETA 2824 movement is noted as running smoothly, and the watch is considered a great value with strong resale. Some owners desire larger sizes or different dial colors, and one reviewer found the Sinn 556i more versatile. The sapphire bezel is described as tall and flat, which is a point of contention for some. Overall, owners rate the Halios Sunburst Blue highly for its design, size, and value.

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Retail MSRP
$765
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Alternatives
Case
40mm
Power Reserve
—
Movement
Automatic
Water Resistance
200m
Crystal
Sapphire (double-domed)
01

Case Dimensions

Diameter40mm
Thickness12.4mm
Lug-to-Lug46.5mm
Lug Width20mm
02

Case Build

MaterialTitanium
Water Resistance200m
03

Crystal & Dial

CrystalSapphire (double-domed)
Dial ColorSunburst Blue
04

Movement

Caliber
Sellita SW200-1
TypeAutomatic
Beat Rate—
Power Reserve—
Jewels—
HackingNo
Hand-WindingNo
ComplicationsTime only
05

Design Language

Dial styleSunburst
BezelFixed
Bracelet / strapRubber strap
HandsBaton
AI-detected from product image · 5/22/2026

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