Side by side

Halios Seaforth IVvsOak & Oscar The Humboldt 12-hr

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Seaforth IV
HaliosSeaforth IV
MSRP $765
The Humboldt 12-hr
Oak & OscarThe Humboldt 12-hr
MSRP $1,750

At a glance

16 of 29 specs differ
Diameter
Seaforth IV40mm
The Humboldt 12-hr39.5mm
Power Reserve
Seaforth IV40h
The Humboldt 12-hr42 hoursh
Water Resistance
Seaforth IV200m
The Humboldt 12-hr200m
MSRP
Seaforth IV$765
The Humboldt 12-hr$1,750

Full specifications

Case

5 specs
Category
Diver
Tool
Diameter
40mm
39.5mm
Lug-to-Lug
46.5mm
46.8mm
Material
Titanium
316L Stainless Steel
Caseback
Solid
Solid screw-down

Crystal & Dial

5 specs
Crystal
Sapphire (double-domed)
Sapphire
Crystal Shape
Flat
Double-domed
AR Coating
Inner
Underside
Dial Color
Blue
Grey
Lume
None
Super-LumiNova

Movement

5 specs
Caliber
Sellita SW200-2
ETA 2892A2
Beat Rate
28,800 vph
4 vph
Power Reserve
40h
42 hoursh
Jewels
25
21
Complications
None
GMT, Chronograph, Date

Pricing

1 specs
MSRP
$765
$1,750

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What people say

Owners + reviewers, side by side

Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.

Halios Seaforth IV

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.

From video reviewers

The sunburst blue dial is a standout feature. Limited water resistance is a shared concern.

Oak & Oscar The Humboldt 12-hr

Oak & Oscar The Humboldt 12-hr owners widely praise its comfortable, solid bracelet with screw links and tight end-link fit, along with its awesome sandwich dial featuring superb grain and crisp details. The 12-hour bezel is noted as excellent for tracking a second time zone, and the orange second hand adds a nice pop. One owner reports the watch has outstanding quality and a perfect fit on smaller wrists, while another notes its legibility and great presence on various straps. A reviewer describes it as a 40mm stainless steel tool watch with a matte, brushed finish and a sandwich dial, powered by an ETA 2892-A2 movement with a 42-hour power reserve. Some in the line report the lume could be brighter. On balance, owners and reviewers rate Oak & Oscar The Humboldt 12-hr highly for its build quality and versatile tool-watch design.

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