Borealis Watch Co. Sea Storm MK2 GMTvsSpinnaker Bradner Automatic
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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 Automatic
Diameter
41.5mm
42mm
Lug-to-Lug
48.5mm
lowest
50mm
Thickness
14.2mm
lowest
15mm
Water Resistance
300m
highest
180m
MSRP
$415
$179
lowest
Movement
Seiko NH34
Miyota 8215
Case
6 specsCrystal & Dial
2 specsMovement
1 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 Spinnaker Bradner's vibrant dial options and excellent lume on both indices and bezel, with one reviewer calling the textured dial's fine details and color-matched bezel lume a work of art. The bezel action is described as extremely crisp. However, some finishing on the minute ring is imprecise, and the inner bezel crown rotates too easily, with one owner finding the clasp unsatisfactory. The watch uses a Seiko NH35 automatic movement and is 42mm in case size with 180m water resistance. On balance, owners rate the Spinnaker Bradner highly for its eye-catching design and lume at its price point.
The Spinnaker Atlantic Blue's reliable Seiko NH35 automatic movement is a key strength. The watch's lume performance is somewhat lacking, which may be a trade-off for some buyers. Reviewers disagree on the watch's bezel action, with one reviewer praising it as smooth and precise, while the other two do not mention it.
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