Borealis Watch Co. Sea Storm MK2 GMTvsSpinnaker Bradner GMT
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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
Bradner GMT
Diameter
41.5mm
42mm
Lug-to-Lug
48.5mm
lowest
50mm
Thickness
14.2mm
lowest
15mm
Water Resistance
300m
highest
180m
MSRP
$415
$299
lowest
Movement
Seiko NH34
Seiko NH34
Case
7 specsCrystal & Dial
2 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 praise the Spinnaker Bradner GMT for its excellent lume, comfortable wearability, and value, with one owner noting the rubber strap is very comfortable and the beads of rice bracelet fits well on smaller wrists. Some find the 15mm thickness and bold colorway polarizing, and one owner views it more as a casual GMT with tool-watch styling than a diver. Overall, owners rate the Spinnaker Bradner GMT highly for its comfortable wearability and value at the price point.
The watch offers excellent dial legibility and a functional internal rotating 24-hour bezel. The water resistance is rated at 200 meters.
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