Side by side

Bremont ionBirdvsHalios Seaforth IV

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

ionBird
BremontionBird
MSRP $5,800
Seaforth IV
HaliosSeaforth IV
MSRP $765

At a glance

10 of 29 specs differ
Diameter
ionBird43mm
Seaforth IV40mm
Power Reserve
ionBird40h
Seaforth IV40h
Water Resistance
ionBird
Seaforth IV200m
MSRP
ionBird$5,800
Seaforth IV$765

Full specifications

Case

6 specs
Category
Pilot
Diver
Diameter
43mm
40mm
Thickness
12.4mm
Lug-to-Lug
46.5mm
Lug Width
20mm
Water Resistance
200m

Crystal & Dial

2 specs
Crystal
Sapphire
Sapphire (double-domed)
Dial Color
Regular length (15cm - 19cm wrist size)
Blue

Movement

1 specs
Caliber
Sellita SW200-2

Pricing

1 specs
MSRP
$5,800
$765

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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.

Bremont ionBird

Owners report the Bremont ionBird is overpriced and features a printed dial with a poorly placed date window at 4:30, which some find visually disruptive. However, some owners suggest its case finishing is superior to competitors. The 43mm titanium Bremont ionBird GMT is powered by a COSC-certified BE-93-2AV automatic movement and retails for $5,795. On balance, owners and reviewers find the Bremont ionBird's date window placement and price point to be significant drawbacks.

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.

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