Borealis Watch Co. Sea Storm MK2 GMTvsGlycine Combat Sub
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Sea Storm MK2 GMT

Combat Sub
Diameter
41.5mm
42mm
Lug-to-Lug
48.5mm
n/a
Thickness
14.2mm
10.4mm
lowest
Water Resistance
300m
highest
200m
Power Reserve
n/a
38h
MSRP
$415
lowest
$515
Movement
Seiko NH34
Sellita SW200-1
Case
7 specsCrystal & Dial
5 specsMovement
5 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
The Borealis Sea Storm MK2 GMT is noted for its retro aesthetic, featuring modern components, a black and white bezel, and an orange GMT hand. Owners highlight its ample lume and a well-made bracelet. The watch is described as being a relatively thick, yet surprisingly wearable, 41.5mm case size, with a date window that integrates smoothly into the dial. Overall, owners rate the Borealis Sea Storm MK2 GMT highly for its retro vibe and modern execution at its price point.
Owners widely praise the Glycine Combat Sub for its exceptional thinness, with sources noting case thicknesses around 10.4mm to 10.8mm, perfect proportions, and a refined aesthetic that avoids homage designs. Many highlight its significant value, especially at discounted prices, and its solid build quality. Some owners report an inconsistent power reserve and sub-par lume that can be difficult to read at night, while one owner noted a slightly off-color lume pip on the chapter ring. Overall, owners rate the Glycine Combat Sub highly for its blend of wearability and value.
The Glycine Combat Sub offers good value at its price point, with reviewers highlighting its attractive design and comfortable wear. However, multiple reviewers noted areas where cost-saving measures are apparent in the build quality.
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