Side by side

Halios Seaforth IVvsMaen Manhattan Ultra Thin

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

Seaforth IV
HaliosSeaforth IV
MSRP $765
Manhattan Ultra Thin
MaenManhattan Ultra Thin
MSRP $1,159

At a glance

11 of 29 specs differ
Diameter
Seaforth IV40mm
Manhattan Ultra Thin37mm
Power Reserve
Seaforth IV40h
Manhattan Ultra Thin40h
Water Resistance
Seaforth IV200m
Manhattan Ultra Thin100m
MSRP
Seaforth IV$765
Manhattan Ultra Thin$1,159

Full specifications

Case

7 specs
Category
Diver
Dress
Diameter
40mm
37mm
Thickness
12.4mm
7.1mm
Lug-to-Lug
46.5mm
Lug Width
20mm
Material
Titanium
316L Stainless Steel
Water Resistance
200m
100m

Crystal & Dial

2 specs
Crystal
Sapphire (double-domed)
Sapphire
Dial Color
Blue
M2.2.1

Movement

1 specs
Caliber
Sellita SW200-2

Pricing

1 specs
MSRP
$765
$1,159

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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.

Maen Manhattan Ultra Thin

The Maen Manhattan Ultra Thin is widely praised for its slim case, with reviewers noting a 6.9mm or 7.1mm thickness, and its elegant, vintage-inspired styling. Specific design elements highlighted include a Côtes de Genève or hammered "Tuscan" dial finish and an integrated bracelet. The hand-wound ETA Pesaux 7001 movement is noted for its role in achieving the thin profile, offering a 42-hour power reserve. However, the black text on the vertically striped dial can be difficult to read, and the integrated bracelet lacks a quick-release system. Some reviewers expressed a desire for a 38mm case size option. Overall, reviewers rate the Maen Manhattan Ultra Thin highly for its slim, elegant design and vintage aesthetic at its price point.

From video reviewers

The ultra-thin profile is a standout feature. The value proposition is a point of discussion.

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