Borealis Watch Co. Sea Storm MK2 GMTvsGlycine Combat Sub Sport
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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 Sport
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
$540
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 Sport for its exceptional value, often found under $400, its solid build with brushed finishing, and its notably thin case profile, with many sources citing dimensions around 10.4mm to 10.8mm, making it comfortable and wearable. Reviewers and owners consistently highlight its unique, non-homage aesthetic and excellent timekeeping, with some reporting accuracy within +1/+2 seconds per day, though one owner noted their Sellita SW200 movement ran at approximately +6 to +9 seconds per day. Some owners dislike the "COMBAT" text on the dial and find the lume sub-par, while others note inconsistent power reserve not always reaching the advertised 42 hours. On balance, owners and reviewers rate the Glycine Combat Sub Sport highly for its outstanding value and comfortable, thin wearability.
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