Side by side

Halios Seaforth IVvsGrand Seiko SLGB003

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

Seaforth IV
HaliosSeaforth IV
MSRP $765
SLGB003
Grand SeikoSLGB003
MSRP $11,400

At a glance

12 of 29 specs differ
Diameter
Seaforth IV40mm
SLGB00337mm
Power Reserve
Seaforth IV40h
SLGB00372h
Water Resistance
Seaforth IV200m
SLGB003100m
MSRP
Seaforth IV$765
SLGB003$11,400

Full specifications

Case

5 specs
Category
Diver
Dress
Diameter
40mm
37mm
Thickness
12.4mm
11.4mm
Lug-to-Lug
46.5mm
44.3mm
Water Resistance
200m
100m

Crystal & Dial

3 specs
Crystal
Sapphire (double-domed)
Sapphire
AR Coating
Inner
Yes
Dial Color
Blue
Black

Movement

3 specs
Caliber
Sellita SW200-2
9RB2
Type
Automatic
Spring Drive
Power Reserve
40h
72h

Pricing

1 specs
MSRP
$765
$11,400

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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.

Grand Seiko SLGB003

Grand Seiko SLGB003 owners widely praise its lightness and comfort, with a dial that offers a shifting character in different lighting conditions. Reviewers note its compact case size enhances wearability and versatility across wrist sizes. However, one owner found the dial underwhelming, and another reported a date disc issue with lower numbers not changing correctly. Some question the value proposition at around $10,000, citing the bracelet and dial as potential drawbacks, while others highlight the movement and smaller dimensions as significant positives. On balance, owners rate the Grand Seiko SLGB003 highly for its movement and compact dimensions, despite some reservations about the dial and bracelet.

From video reviewers

The watch's exceptional accuracy is a notable strength, with both reviewers highlighting its precise timekeeping. A weakness is the relatively high price point compared to other Grand Seiko models. Reviewers disagree on the ideal case size, with one reviewer noting it's relatively small at 37mm, while the other doesn't mention case size as a concern.

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