Side by side

Glycine Combat Sub SportvsHalios Seaforth IV

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

Combat Sub Sport
GlycineCombat Sub Sport
MSRP $1,850
Seaforth IV
HaliosSeaforth IV
MSRP $765

At a glance

18 of 29 specs differ
Diameter
Combat Sub Sport39mm
Seaforth IV40mm
Power Reserve
Combat Sub Sport38h
Seaforth IV40h
Water Resistance
Combat Sub Sport300m
Seaforth IV200m
MSRP
Combat Sub Sport$1,850
Seaforth IV$765

Full specifications

Case

7 specs
Diameter
39mm
40mm
Thickness
11.2mm
12.4mm
Lug-to-Lug
46.5mm
Material
Stainless Steel
Titanium
Finish
Brushed and polished
Water Resistance
300m
200m
Caseback
Solid

Crystal & Dial

6 specs
Crystal
Sapphire
Sapphire (double-domed)
Crystal Shape
Flat
AR Coating
Inner
Dial Color
Black
Blue
Indices
Applied
Lume
Luminous
None

Movement

4 specs
Caliber
SW200-1
Sellita SW200-2
Power Reserve
38h
40h
Jewels
26
25
Complications
Date
None

Pricing

1 specs
MSRP
$1,850
$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.

Glycine Combat Sub Sport

Owners widely praise the Glycine Combat Sub Sport for its exceptional thinness, with multiple sources noting profiles between 10.4mm and 11mm, comfortable wearability on a variety of wrist sizes due to its proportions and contoured lugs, and its value, especially when found under $400. Some owners highlight its refined finishing and unique, non-homage design, while others appreciate its ruggedness and durability, with one noting PVD coating remained flawless after three years of heavy use. Accuracy figures range from excellent, with one owner reporting only 2 seconds lost per day, to inconsistent power reserve and occasional reported issues with the movement and stem. The lume is described as subpar by some, though one owner found it marginally better than a Seiko SKX007. Reservations are occasionally raised regarding warranty service and the use of folded end links on the bracelet.

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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