Side by side

Halios Seaforth IVvsGruppo Gamma Field III GMT

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

Seaforth IV
HaliosSeaforth IV
MSRP $765
Field III GMT
Gruppo GammaField III GMT
MSRP $459

At a glance

13 of 29 specs differ
Diameter
Seaforth IV40mm
Field III GMT40mm
Power Reserve
Seaforth IV40h
Field III GMT41h
Water Resistance
Seaforth IV200m
Field III GMT200m
MSRP
Seaforth IV$765
Field III GMT$459

Full specifications

Case

5 specs
Category
Diver
GMT
Thickness
12.4mm
14mm
Lug-to-Lug
46.5mm
48.5mm
Lug Width
20mm
22mm
Material
Titanium
Stainless Steel

Crystal & Dial

4 specs
Crystal
Sapphire (double-domed)
Sapphire
AR Coating
Inner
Yes
Dial Color
Blue
Black
Lume
None
Super-LumiNova

Movement

3 specs
Caliber
Sellita SW200-2
Seiko Instruments NH38A
Power Reserve
40h
41h
Complications
None
GMT

Pricing

1 specs
MSRP
$765
$459

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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.

Gruppo Gamma Field III GMT

Owners praise the Gruppo Gamma Field III GMT for its look and value, with specific mentions of its sandwich dial and comfortable OEM straps. One owner notes incredible quality for the price across their Gruppo Gamma watches. The watch features a 40mm brushed stainless steel case, box sapphire crystal, and a Seiko NH34A movement with a 41-hour power reserve and stated accuracy of -20~+40 s/day. Some find the lack of a date window a drawback for a GMT, and question its differentiation from other NH34-powered watches. On balance, owners and reviewers find the Gruppo Gamma Field III GMT to be a good value with quality construction for its price point.

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